n.
1.a word or phrase used to complete a grammatical construction
2.a complete number or quantity
3.number needed to make up whole force
4.something added to complete or make perfect
5.one of a series of enzymes in the blood serum that are part of the immune response
6.either of two parts that mutually complete each other complement v.
1.make complete or perfect
Idiom of the Day
too much of a good thing
to be more of a good thing than is good or useful
The new company policy is too much of a good thing and they may change it.