Precisely is defined as exactly, specifically or with precision. When it is exactly 1:00, this is an example of a time when it is precisely 1:00.

Can we use precisely instead of exactly?

On its own, precisely can substitute for yes or exactly.

What does precisely mean?

1 : in a precise manner : exactly weighing ingredients precisely This incremental adjustment is continued until the bubble is precisely centered.— Barry F. Kavanagh —often used to emphasize the precision of something (such as a measurement, time, description, etc.)