Compare, Comprise, Compose Lessons

Okay … time for a grammar person lesson here to make the blog title legitimate.

“Compare with” versus “Compare to”

You compare comparable data, objects, concepts, etc. with each other.
The intervention group showed significant improvement compared with the control group.

You compare incomparable items to each other, as in a simile or metaphor.
“Shall I compare thee to a summer’s day?” (Shakespeare)

“Comprise” versus “Compose”

A whole comprises (includes) many pieces. Alternatively, a whole is composed of (made up of) many pieces … but never, ever “comprised of”. Take-home message: never use “of” with “comprise”.


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