approximation
Pronunciation: [əˌprɒk.sɪˈmeɪ.ʃən]
Word
Context: “mathematics”
(noun) an approximation is a number or value that is close to, but not exactly equal to, something. It's like trying to guess a number that is close enough for the situation, especially when you cannot get the exact number.
Example
The approximation of π (pi) is often taken as 3.14 for easier calculations.
Example
Using an approximation of 5 for 9 is not very accurate.
Example
What is the best approximation we can use for this problem?
Context: “general use”
(noun) an approximation can also refer to a rough idea or guess about something. It’s when you don’t know the exact details, but you have a good idea that isn’t too far off.
Example
His approximation of how much the trip would cost was surprisingly close to the final price.
Example
Her approximation of the time it would take to finish was way off.
Example
Can you make an approximation of how many people will come to the party?
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