The meaning of HALF is either of two equal parts that compose something; also : a part approximately equal to one of these. How to use half in a sentence.
Idioms in half, into two almost equal parts: The vase broke in half. Idioms not (the) half of it, a significant yet relatively minor part of something that remains to be described in full: It's a shocking story, but you don't know the half of it.
HALF definition: one of two equal or approximately equal parts of a divisible whole, as an object, or unit of measure or time; a part of a whole equal or almost equal to the remainder. See examples of half used in a sentence.