one by one

Idioms and Phrases

Also, one at a time . Individually in succession, as in The ducklings jumped into the pond one by one , or One at a time they went into the office . Formerly also put as one and one and one after one , this idiom dates from about a.d. 1000.

Example Sentences

The models were assisted onto the platformed catwalk one-by-one, and their veils were lifted to reveal their faces.

From The Daily Beast

They come through on our end in a queue, and we'll approve one-by-one so Ogi/Sai/Jess have the time to answer them.

From The Daily Beast