Chi vs Che Cosa: People vs Things

Italian draws a sharp line that English does not always honour: chi asks about people, cosa asks about things. There is no overlap, no exception, no leakage from one to the other. The rule is so categorical that, once you internalise it, half the work of asking questions in Italian is already done. This page is about that single distinction — its mechanics, its consequences with prepositions, and the small set of cases where English speakers slip up.

The good news for English speakers: the same split exists in English (who vs what) and runs along almost exactly the same lines. The bad news: English allows a handful of border-crossings that Italian flatly rejects. We'll work through them.

1. The rule, in its simplest form

Three forms cover what — cosa, che cosa, and che — and they are interchangeable in meaning. Cosa is the everyday default in modern speech; che cosa is slightly more formal; che is the shortest and most colloquial. Throughout this page, when we say cosa, treat it as shorthand for any of the three; when the choice between them matters, we'll flag it.

The contrast between Chi ha aperto la porta? and Cosa hai aperto? is the heart of the system: same verb, same syntax, different question because the asked-about element is different. The pronoun selects the kind of answer expected — a person or a thing.

2. Why this matters more in Italian than in English

Italian and English split who/what the same way, but Italian draws the line harder. English allows informal slippage in a few places where Italian doesn't:

1. English uses what for activities and professions ("What do you do?") even though the actual answer is an action performed by a human. Italian cannot use chi here — the question is about the action, so cosa fai? (what do you do?) or che lavoro fai? (what work do you do?).
2. English sometimes says who for an event with people ("Who's playing tonight?" referring to a sports match). Italian still uses cosa if the question is about the event itself, chi only if the question is genuinely about which people.
3. English allows what with personified abstracts ("What is love?"). Italian also allows this, since love is not a person.

The trap to avoid is over-extending English habits — using chi where the question is really about a thing because in English you'd casually say "who" — or, the other direction, using cosa where the question is genuinely about a person because what in some English idioms covers people.

3. Ambiguity: the same verb with both questions

A useful exercise is to take a transitive verb and ask it both ways:

The pronoun does double duty: it forms the question and signals what kind of answer the speaker expects.

4. With prepositions: con chi vs con cosa, etc.

The chi/cosa distinction extends through every preposition. Italian asks with whom as con chi, with what as con cosa. There's no contraction — the preposition simply sits before the pronoun.

The pattern is mechanical: pick the preposition you'd use in a statement (penso a Marco → I'm thinking about Marco), keep the preposition, and substitute chi (for a person) or cosa (for a thing) in place of the noun.

5. The English speaker's mental shortcut

For English speakers, the chi/cosa split is mostly intuitive — but here is a precise mental rule that handles even the borderline cases:

Ask: would the answer be a human being's name (or a pronoun referring to a human)? If yes, chi. If no, cosa.

This handles all the cases where English idiom might mislead:

A subtle and instructive case: Cos'è / Cosa è. When you point at an unfamiliar object and ask its identity, the question is about the kind of thing it is, not about a person — so cosa.

The contraction cos'è is normal in speech and writing — cosa è loses its final vowel before è by elision, and the apostrophe is required (unlike qual è, where no apostrophe is allowed because the shortening is troncamento, not elision).

6. The "Chi vuoi?" ambiguity — and how Italian resolves it

Imagine someone walks into a shop and you ask Chi vuoi? The answer must be a person — chi forces this reading. Italian is not ambiguous here. If the customer wants an object, the question must be Cosa vuoi? The pronoun does the disambiguation that English context-and-tone do.

This is a real difference from English, where what do you want? and who do you want? often blur in casual speech ("Whatcha want?" could be either). Italian forces precision.

7. Chi di voi — the partitive who

A useful idiom: when asking who out of a group, Italian uses chi di voi (who of you, who among you). This is straightforward but worth knowing as a fixed phrase.

The English speaker's instinct here might be quale di voi, and that is also possible, but chi di voi is more idiomatic for groups of people — it preserves the human-targeting force of chi while specifying a partitive scope.

8. Chi vs quale with people

When asking about a person, chi and quale are not synonyms. Chi asks for an identity (Chi è quel ragazzo? — È mio cugino); quale picks among options (Quale ragazzo? Quello con la maglietta rossa? — Sì, lui). If you can rephrase your English with which, use quale; if your English uses who, use chi. They are not interchangeable — chi introduces, quale selects.

9. Patterns to drill at A1 level

These question patterns are the workhorses of beginning Italian. Build muscle memory with them.

10. Common mistakes

11. A note on che alone and possible confusion

Because che without cosa is one of the three ways to ask what, you might wonder whether che in a question always means what. The answer: in question slots, yes — che means what (or, with a noun, which/what kind). But che in a statement is usually a relative pronoun (il libro che leggo — the book I'm reading) or a conjunction (so che è vero — I know that it's true). Context disambiguates them; the position in the sentence is the cue.

The practical point for chi/cosa: short che in a question is always interpretable as cosa (not chi). If you want to ask about a person, chi is the only option — there's no person-equivalent of the abbreviated che.

Key takeaways

• Chi = who/whom — for people only.
• Cosa / che cosa / che = what — for things, events, actions, abstractions.
• The split is categorical: never use chi for a thing, never use cosa for a person.
• Both pair with prepositions: con chi, con cosa, a chi, a cosa, di chi, di cosa, etc.
• The mental shortcut: would the answer be a human being's name? Yes → chi. No → cosa.
• Cos'è takes an apostrophe (elision); qual è does not (truncation).
• Chi di voi = who among you (idiomatic partitive).
• Quale selects from a set; chi identifies — they are not interchangeable.