Sometimes compliment/complement shows up in the error ID questions on the SAT, so knowing the difference can help you score better on the SAT.
The difference isn’t difficult.
A compliment is an expression of encouragement or praise.
She paid a compliment to the chef.
She complimented him on his excellent taste in diamonds.
Something that is free is complimentary.
I love going to the new Dickey’s Barbecue in New Tampa because the soft serve ice cream is complimentary.
Complement with an E applies to things that go together.
The wine you have chosen really complements the entree.
Hope that helps. If you are preparing for the SAT or ACT this summer and would like help, call New Tampa and Wesley Chapel, FL English Tutor Eric Anderson at 813.787.8959.