How does one say peep in French?

There's no direct one-to-one translation for "peep" in French. It depends on the context of how you're using the word. Here are some possibilities:

If you mean "to look quickly and secretly":

* Jeter un coup d'œil: This is the most common phrase, meaning "to take a quick look."

* Regarder en douce: This means "to look stealthily."

* Espionner: This is a stronger word, meaning "to spy" or "to watch secretly."

If you mean "to make a small, quiet sound":

* Piailler: This is the sound of a small bird, but it can also be used to describe a soft, weak sound.

* Chuchoter: This means "to whisper."

* Grogner: This means "to grunt" and could be used for a small, low sound.

If you mean "to say something briefly":

* Dire un mot: This means "to say a word."

* Lancer un mot: This means "to throw a word."

* Faire un petit bruit: This means "to make a little noise."

Examples:

* J'ai jeté un coup d'œil dans la pièce. (I took a quick look into the room.)

* Le bébé a piaillé dans son sommeil. (The baby peeped in its sleep.)

* Il a chuchoté son secret à son ami. (He whispered his secret to his friend.)

To give you the best translation, please provide the context of how you're using "peep."