Definition of Guesstimate
to make an estimate based on the facts at hand
Examples of Guesstimate in a sentence
The children were asked to guesstimate how many marbles were in the jar, and the one who came closest to the correct number received a prize.
In math class, you should only guesstimate if the teacher says you don’t have to get an exact amount.
We guesstimate that there will be 200 guests at the wedding, but we won’t have a final count until the actual day.
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