* Should I finish all this work in an hour?
What is the meaning of 'in'?
Does it mean 'after' or 'within'?
within
Thank you for using the Jiskha Homework Help Forum. Actually, we need to know what part of speech "in" is! Since it did not have a hyphen, I'm assuming it is not a previx:
as a preposition, in = into
as an adverb = to or toward the inside; within
as an adjective = inside, incoming
as a noun = influence, pull
Sra
P.S. See how important the context, or exactly how the word is used, is.