A part approximately equal to one of these How to use half in a sentence. Either of the two equal or nearly equal parts that together make up a whole 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.
The phrase half again expresses an amount in addition to the amount being compared to E.g., half as many people refers to 50% of the original number, while half again as many people refers to 150% of the original number. 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.
The tank is half empty A prefix used to indicate that something is just half or done half, and therefore not total or fully done.
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