The word estimate can be a noun and a verb.
Noun: A rough calculation.
Verb: To calculate roughly.
front end estimation means to use only the whole number part of the decimal. we only use whole numbers to do front end estimation
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
adverb
what part of speech is work
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.
Because you need to be able to be as accurate as you can.
The word speech is a noun.
Adjective
No, but it's part of a noun which the noun is the part of speech.