French Phrase
C'est quoi ton plus grand rêve ?
Meaning
Literally, "What is your biggest dream?" It asks the listener to share the most important aspiration or life goal they have. The phrase is casual and often used among friends or in informal settings.
When to use
Use this question when you want to learn about someone's long‑term ambitions in a relaxed conversation—e.g., during a coffee chat, a language‑exchange meetup, or when getting to know a new friend.
✦Grammar Breakdown
C'estquoitonplusgrandrêve?
C'est
Contraction of "cela est"; used in spoken French to introduce a question or statement.
quoi
When placed after "c'est", "quoi" functions as an informal way to ask "what is...".
ton
Possessive adjective meaning "your" (informal, singular).
plus ... grand
Superlative structure: "plus" (more) + adjective + noun = "the biggest/most ...".
rêve
Noun meaning "dream"; masculine singular, takes the article "le" in a full sentence.
🗨In Conversation
C'est quoi ton plus grand rêve ?
What is your biggest dream?
Mon plus grand rêve, c'est de voyager autour du monde et d'écrire un roman.
My biggest dream is to travel around the world and write a novel.
✕Common Mistakes
C'est quoi ton plus grande rêve ?
The adjective "grand" must stay masculine because it modifies the masculine noun "rêve".
C'est quoi ton plus grand rêves ?
The noun is singular; adding an "s" changes the meaning and makes the sentence ungrammatical.
C'est quoi ton plus grand rêve
Missing the question mark can make the sentence look like a statement rather than a question in written French.
C'est quoi votre plus grand rêve ?
When speaking formally, replace the informal "ton" with the polite "votre".
↔Alternatives
Quel est ton plus grand rêve ?
What is your biggest dream?
Qu'est‑ce que tu rêves le plus ?
What do you dream about the most?
Quel est le rêve le plus important pour toi ?
What is the most important dream for you?
Cultural Tip
In French, "C'est quoi..." is very colloquial and typical of spoken language, especially among younger speakers. In a formal context (e.g., a job interview) you would prefer "Quel est votre plus grand rêve ?" using the polite "vous". Also, French people often talk about "rêve" in a poetic sense, so the question can lead to imaginative or philosophical answers.