Spanish, Italian, Portuguese and French: how similar are they really?
The Romance languages share Latin roots, lots of vocabulary and similar grammar. Where they overlap, where they don't, and whether learning one helps with the others.
· 3 min read
Spanish, Italian, Portuguese and French all descend from Latin, more precisely from the everyday spoken Latin of the Roman Empire rather than the classical Latin of literature. After the empire fragmented, local varieties drifted apart over centuries and became separate languages. They're siblings, and like siblings, some resemble each other more than others.
Vocabulary: lots of shared roots
Look at a few everyday words side by side:
| English | Latin source | Spanish | Portuguese | Italian | French |
|---|---|---|---|---|---|
| water | aqua | agua | água | acqua | eau |
| night | nox / noctem | noche | noite | notte | nuit |
| to eat | comedere / manducare | comer | comer | mangiare | manger |
| black | niger | negro | preto / negro | nero | noir |
| key | clavis | llave | chave | chiave | clé |
| milk | lac / lactem | leche | leite | latte | lait |
A few patterns stand out:
- Spanish and Portuguese are especially close. Many words are identical or nearly so in writing, and the grammar is very similar.
- Italian sits near Spanish in vocabulary and is easy for Spanish speakers to read, though it uses different everyday words more often than you'd expect (mangiare rather than comer).
- French is the most distinct, especially in pronunciation. Its spelling often still looks Latin-like, but its sounds changed a great deal. That's why written French is much easier for a Spanish speaker to follow than spoken French. Why French spelling doesn't match the sound explains how that happened.
Even when words differ, the "to eat" row shows how they're often related to some Latin word: Spanish and Portuguese kept a form of comedere, while Italian and French took theirs from a colloquial Latin verb related to chewing.
Grammar: a family resemblance
All four share core features that will feel familiar once you've learned one of them:
- Nouns have grammatical gender (masculine and feminine).
- Adjectives agree with nouns.
- Verbs are conjugated for person and tense, with similar sets of tenses, including a subjunctive.
- Subject pronouns are often dropped in Spanish, Portuguese and Italian, because the verb ending shows the person. French, unusually, generally keeps them (je parle, not just parle).
Understanding vs speaking
Speakers of these languages can often understand each other's writing to a surprising degree, and Spanish and Portuguese speakers can frequently follow each other's speech with some effort. Pronunciation is the main barrier, more than vocabulary. Portuguese pronunciation, especially in Portugal, is much harder for Spanish speakers to follow than written Portuguese.
Does learning one help with the others?
Yes, considerably, especially for reading. Once you know Spanish, Italian and Portuguese texts become partially readable almost immediately, and you'll learn their grammar much faster because the concepts are already familiar.
The risk is mixing them up. Learners of a second Romance language commonly blend in words and endings from the first, producing sentences that are half one and half the other. It fades with practice, and the vocabulary overlap is well worth the occasional mix-up.
You can see the overlap for yourself by comparing the same phrases across five languages. Or, for words that have no neat equivalent in any of them, see saudade, sobremesa and other untranslatable words.