what
The French word 'quoi' stands for the English word 'what'. It is often used in forming or answering questions. Similar to the English equivalent, 'quoi' can either be used to ask for specific information ('Quoi est-ce? — What is it?') or to express surprise or disbelief ('Quoi? — What?'). Note that the word ’quoi’ is generally used in informal speech; in formal writing or speech, 'que' or 'quel(le)' is more commonly used.
What's new?
This phrase is commonly used as a casual greeting, similar to 'what's up?' in English.
I need to know what to do.
This phrase expresses the speaker's necessity for guidance or direction about what action to take next.
Anyway, we must continue.
This phrase is a common way to transition back to a subject when faced with a minor setback.
What is this?
This phrase is used when one encounters something unrecognizable or surprising.
What is better than summer vacation?
This rhetorical question is often used to express excitement or anticipation for something.
How much does it cost?
It's commonly used when asking the price of something in any transaction.
Whatever you do, don't stop running.
An instruction or advice where the speaker gives importance to the action 'don't stop running' regardless of any situation.
What are you talking about?
A common way to express confusion or lack of understanding about the speaker's previous statements.
Why are you angry? Whatever it is, I'm sorry.
These two sentences display the use of 'quoi' in a question and as part of an expression meaning 'whatever it is'. It is a common way to express uncertainty about what is causing someone's anger and to apologize for it.