Dilate – to enlarge, to make bigger

(Pronounced dai-layt)

To remember the definition of the word dilate, use the following mnemonic:

I'll go on a diet later (dilate); but for now I'm going to make myself bigger.

Examples of dilate in a sentence

Before the eye test, drops are given to dilate the pupil.

The cats pupils dilate when she wants to play.

Your pupils will dilate in darkness and contract in the light.