Definitions

1. adverb

to or at a point one second after the first time; again after an interval of time

“She sang a song twice at the concert.”

2. adverb

twice the number or amount of something

“I had twice the amount of money I had yesterday.”

3. noun

a repetition of an action or event

“The fireworks display was a spectacular twice in the summer.”

4. noun

a number or quantity that is a multiple of two, especially the number two

“In mathematics, three is twice two plus one.”