Autostrada, sottopassaggio, lungolago: what do these three Italian words have in common (apart from the fact that you’ll likely spot them on road signs during your Italian road trip)? They are all nouns made up of two words fused together into one. In Italian, we call them parole composte — compound words.
The adjective composto comes from the Latin cum (with) and ponere (to place). So yes, a compound word is literally just a word made by placing two words together. These two words don’t have to belong to the same grammatical category: it can be a verb combined with a noun, a noun with an adjective, a preposition with a noun. The possible pairings are many, and the result is a new word with its own meaning.
Is there a formula to predict which words can merge and which can’t? Not really, it’s mostly a matter of usage. So let’s look at some of the most common ones and start putting them to use!
Key Italian compound patterns
There are several ways to form compound words in Italian, but I’ll try to keep this as painless as possible by focusing on the key patterns that will cover you in most situations. The plural forms follow different rules and come with the usual exceptions, but don’t stress, you’ll pick them up with practice. And honestly, even us Italians sometimes pause and think, “Wait, what’s the plural of that one?”
Noun + Noun
One of the most common ways to form compound words in Italian is to take two nouns and merge them into a new one. For example:
madre (mother) + lingua (tongue) —> madrelingua (native speaker)
The tricky part comes when we need to form the plural, because there are different rules (and, naturally, the usual exceptions):
1. When the two nouns share the same gender, only the second noun changes in the plural; the first stays the same.
L’autostrada (the motorway) —> l’auto (the car) + la strada (the road)
Plural: le autostrade
Il melograno (the pomegranate) —> il melo (the apple tree) + il grano (the grain)
Plural: i melograni
La cassapanca (the storage bench) —> la cassa (the chest) + la panca (the bench)
Plural: le cassapanche
L’arcobaleno (the rainbow) —> l’arco (the arch) + il baleno (the flash)
Plural: gli arcobaleni
2. When the two nouns have different genders, it’s usually the first noun that gets the plural ending, while the second stays the same.
Il pescespada (the swordfish) —> il pesce (the fish) +la spada (the sword)
Plural: i pescispada
However, in some compounds of this group, it’s actually the second noun that changes instead:
La ferrovia (the railway) —> il ferro (the iron) + la via (the road/way)
Plural: le ferrovie
La banconota (the bill, paper money) —> il banco (the desk) + la nota (the note)
Plural: le banconote
3. And then there are compounds that simply don’t change at all. The plural form is identical to the singular, and only the article tells you whether you’re talking about one or many.
Il fondovalle (the valley floor) —> il fondo (the bottom) +la valle (the valley)
Plural: i fondovalle
Il centrotavola (the centerpiece) —> il centro (the center) + la tavola (the table)
Plural: i centrotavola
Il pianoterra (the ground floor) —> il piano (the floor) + la terra (the ground)
Plural: i pianoterra
Il fondotinta (the foundation, as in makeup) —> il fondo (the base) + la tinta(the shade, colour)
Plural: i fondotinta
A special case: noun + noun compounds with “capo”
Compounds built with capo + another noun have their own logic, and they can feel a bit confusing at first. Here are the key patterns to get familiar with:
1. When capo refers to the person in charge of something, you need to pay attention to gender.
If the compound is masculine, only capo changes in the plural, and the second noun stays the same:
Il caposquadra (the male team leader) —> il capo (the head) + la squadra (the team)
Plural: I capisquadra
Il caporeparto (the male supervisor) —> il capo (the head) + il reparto (the department)
Plural: i capireparto
Il capotreno (the male train manager) —> il capo (the head) + il treno (the train)
Plural: i capitreno
If the compound is feminine, nothing changes and the plural is identical to the singular:
La caposquadra (the female team leader) —> il capo (the head) + la squadra (the team)
Plural: le caposquadra
La caporeparto (the female supervisor) —> il capo (the head) + il reparto (the department)
Plural: le caporeparto
La capotreno (the female train manager) —> il capo (the head) + il treno (the train)
Plural: le capotreno
2. When capo refers to the person in charge of someone, then it always stays the same in the plural and only the second word changes. This applies to both masculine and feminine.
Il caporedattore (the male editor in chief) —> il capo (the head) + il redattore (the editor)
Plural: i caporedattori
La caporedattrice (the female editor in chief) —> il capo (the head) + la redattrice (the editor)
Plural: le caporedattrici
Il capocuoco (the male head chef) —> il capo (the head) + il cuoco (the chef)
Plural: i capocuochi
La capocuoca (the female head chef) —> il capo (the head) + la cuoca (the chef)
Plural: le capocuoche
3. When capo means “the best, the top” of something, same rule as above: capo stays the same and only the second element takes the plural.
Il capoluogo (the regional capital) —> il capo (the top) + il luogo (the place)
Plural: I capoluoghi
Il capolavoro (the masterpiece) —> il capo (the top) + il lavoro (the work)
Plural: | capolavori
Verb + Noun
OK, that was just a warm-up. Now let’s look at another very common category, and probably the most fun to break down.
In this case, we have a verb (usually in a form that resembles the second-person singular imperative) paired with a noun. The result is a new word that typically describes either an object with a specific function or a person with a specific role. For example, what does an aspirapolvere do? It sucks up (aspira) dust (polvere)!
As for forming the plural, it all depends on the noun hiding inside the compound:
1. If the noun is masculine singular, then the compound usually takes a plural ending.
Il segnalibro(the bookmark) —> segnare (to mark) + il libro (the book)
Plural: i segnalibri
Il passaporto (the passport) —> passare (to pass) + il porto (the port)
Plural: i passaporti
Il portafoglio (the wallet) —> portare (to carry) + il foglio (the sheets)
Plural: i portafogli
Il tergicristallo(the windscreen wiper) —> tergere (to wipe) + il cristallo (the window)
Plural: i tergicristalli
Il girasole (the sunflower) —> girare (to turn) + il sole (the sun)
Plural: i girasoli
Il battibecco (the squabble) —> battere (to beat) + il becco (the beak)
Plural: i battibecchi
Il grattacapo (the headache, the worry) —> grattare (to scratch) + il capo (the head)
Plural: i grattacapi
Naturally, there are exceptions, and some compounds with a masculine singular noun stay the same in the plural. For example:
Il portasapone (the soap dish) —> portare (to carry) + il sapone (the soap)
Plural: i portasapone
Il/La perdigiorno (the layabout) —> perdere (to lose) + il giorno (the day)
Plural: i/le perdigiorno
Il/La ficcanaso (the nosy person) —> ficcare (to stick) + il naso (the nose)
Plural: i/le ficcanaso
Il/La giramondo(the globetrotter) —> girare (to wander) + il mondo (the world)
Plural: i/le giramondo
2. If the noun inside the compound is feminine singular or already plural, the compound stays the same in the plural form.
Il posacenere(the ashtray) —> posare (to place) + la cenere (the ash)
Plural: i posacenere
L’aspirapolvere (the vacuum cleaner) —> aspirare (to suck) + la polvere (the dust)
Plural: gli aspirapolvere
Il cavalcavia (the overpass) —> cavalcare (to pass over) + la via (the road)
Plural: i cavalcavia
Il passaparola (word of mouth) —> passare (to pass) + la parola (the word)
Plural: i passaparola
Il portafortuna (the lucky charm) —> portare (to carry) + la fortuna (the luck)
Plural: i portafortuna
Lo stendibiancheria (the drying rack) —> stendere (to hang) + la biancheria (the linen)
Plural: i portafortuna
La lavastoviglie (the dishwasher) —> lavare (to wash) + le stoviglie (the dishes)
Plural: le lavastoviglie
L’apriscatole (the can opener) —> aprire (to open) + le scatole (the cans)
Plural: gli apriscatole
Il cavatappi (the corkscrew) —> cavare (to remove) +i tappi (the corks)
Plural: i cavatappi
Lo spremiagrumi (the citrus juicer) —> spremere (to squeeze) + gli agrumi (the citrus fruits)
Plural: gli spremiagrumi
Il paracadute (the parachute) —> parare (to shield) + le cadute (the falls)
Plural: i paracadute
Il/La rompiscatole (the pain in the neck) —> rompere (to break) + le scatole (boxes)
Plural: I/le rompiscatole
Il/La portaborse (the administrative assistant) —> portare (to carry) + le borse (the bags)
Plural: I/le portaborse
L’attaccabottoni (the chatterbox) —> attaccare (to attach) + i bottoni (the buttons)
Plural: gli/le attaccabottoni
Also this group has some exceptions. Take l’asciugamano (the towel): it contains a feminine singular noun (la mano – the hand)), so you’d expect it to stay the same in the plural. Instead, it changes to gli asciugamani. Many compound words formed with a verb + mano behave this way.
Verb + Verb
After all those verb + noun combinations, this category will feel refreshingly simple. Here we’re pairing two verbs together, and the resulting words are wonderfully expressive. The best part? They stay the same in the plural.
Il tiramolla(the indecisiveness) —> tirare (to pull) + mollare (to let go)
Plural: i tiramolla
Il lasciapassare (the pass, the permit) —> lasciare (to let) + passare (to pass)
Plural: i lasciapassare
Il dormiveglia (the state between sleep and wakefulness) —> dormire (to sleep) + vegliare (to stay awake)
Plural: i dormiveglia
Il parapiglia (the chaos) —> parare (to fend off) + pigliare (to grab)
Plural: i parapiglia
Noun + Adjective
Still with me? Good, because this next one is short and sweet. This category pairs a noun with an adjective, and both elements take the plural ending.
La cassaforte (the safe) —> la cassa (the case) + forte (strong)
Plural: le casseforti
Il caposaldo (the cornerstone) —> il capo (the head, the end) + saldo (firm)
Plural: i capisaldi
La gattamorta (literally “dead female cat,” it’s someone who behaves all sweet and innocent, but it’s all an act) —> la gatta (the female cat) + morta (dead)
Plural: le gattemorte
However, there are compounds where only the adjective takes the plural and the noun stays the same, such as:
Il palcoscenico (the stage) —> il palco (the platform) + scenico (scenic)
Plural: i palcoscenici
La roccaforte (the stronghold) —> la rocca (the fortress) + forte (strong)
Plural: le roccaforti
Adjective + Noun
Now we flip things around: in this group of compound words, the adjective comes first. And when it’s time to form the plural, it all depends on the gender of the noun:
1. If the noun is masculine, only the noun takes the plural form:
Il malumore (the bad mood) —> male (bad) + l’umore (the mood)
Plural: i malumori
L’altoparlante (the loudspeaker) —> alto (high) + il parlante (the speaker)
Plural: gli altoparlanti
Il lungometraggio (the feature film) → lungo (long) + il metraggio (the footage)
Plural: i lungometraggi
Though some stay exactly the same in the plural, like:
Il dolcevita (the turtleneck sweater) —> dolce (sweet) + la vita (the life)
Plural: i dolcevita
(Yes, we have a piece of knitwear that sounds like the Fellini movie!)
2. When the noun is feminine, both the adjective and the noun take the plural:
La malalingua (the gossipmonger) —> mala (bad) + la lingua (the tongue)
Plural: le malelingue
La mezzaluna (the half moon) —> mezza (half) + la luna (the moon)
Plural: le mezzelune
Adjective + Adjective
We’re nearly done, I promise. Sometimes, two adjectives can join together to create a compound word. And the plural rule is straightforward: only the second adjective changes, the first one stays the same.
Il sordomuto(the deaf-mute person) —> sordo (deaf) + muto (mute)
Plural: i sordomuti
Il pianoforte (the piano) —> piano (soft) + forte (loud)
Plural: i pianoforti
Il chiaroscuro(the chiaroscuro, contrast between light and dark) —> chiaro (light) + scuro (dark)
Plural: i chiaroscuri
If you follow Italian calcio (football), you’ve definitely come across this pattern, because Italian teams are often nicknamed after the colours of their kit, and those nicknames are exactly adjective + adjective compounds. For example:
Il bianconero (Juventus football player) —> bianco (white) + nero (black)
Plural: i bianconeri
Il giallorosso (Roma football player) —> giallo (yellow) + rosso (red)
Plural: i giallorossi
Il rossonero (Milan football player) —> rosso (red) + nero (black)
Plural: i rossoneri
Il nerazzurro (Inter football player) —> nero (black) + azzurro (blue)
Plural: i nerazzurri
Preposition + Noun
One last category! This one combines a preposition with a noun, and because the preposition tells you exactly where or when something is, these compounds practically translate themselves.
The plural rule here depends on whether the compound’s gender matches the gender of the noun inside it. When they match, the noun takes the plural ending. But if they don’t match (say, the compound is masculine but the noun inside is feminine), the word stays the same in the plural.
With dopo (after)
Il doposcuola (the after-school program) —> dopo (after) + scuola (school)
Plural: i doposcuola
Il dopocena(the after-dinner time) —> dopo (after) + cena (dinner)
Plural: i dopocena
Il dopoguerra (the postwar period) —> dopo (after) + guerra (war)
Plural: i dopoguerra
All three stay the same in the plural because the compounds are masculine (il doposcuola, il dopocena, il dopoguerra), but the nouns inside (la scuola, la cena, la guerra) are all feminine. The genders don’t match, so the words don’t change.
With sotto (under)
Il sottobicchiere (the space under the stairs) —> sotto (under) + il bicchiere (the glass)
Plural: i sottobicchieri
Il sottotitolo (the subtitle) —> sotto (under) + il titolo (the title)
Plural: i sottotitoli
Il sottopassaggio (the underpass) —> sotto (under) + il passaggio (the passage)
Plural: i sottopassaggi
Il sottoscala(the space under the stairs) —> sotto (under) + la scala (the staircase)
Plural: i sottoscala
See the difference? The first three compounds are masculine, and so are the nouns inside them (il bicchiere, il titolo, il passaggio): genders match, so the plural changes. But il sottoscala is masculine while la scala is feminine: genders don’t match, so the compound stays invariable.
With sopra (above)
Il soprannome (the nickname) —> sopra (above) + nome (name)
Plural: i soprannomi
Il soprammobile (the nickname) —> sopra (above) + il mobile (name)
Plural: i soprammobili
La soprattassa (the surtax) —> sopra (above) + la tassa (the tax)
Plural: le soprattasse
These three compounds all share the same gender as the nouns inside, so the plural changes normally.
With oltre (beyond)
L’oltretomba (the afterlife) —> oltre (beyond) + tomba (tomb)
Plural: gli oltretomba
This compound is masculine but tomba is feminine, so it stays invariable.
Valentina Nicastro is a travel writer in love with her home country, Italy. Having travelled widely around the globe, she realised there was more to explore closer to home and decided to put the passport aside for a while. When she is not immersed in documenting Italy, you’ll find her donning her communication consultant hat, weaving words as a content writer and bridging linguistic divides as a translator.
