Pronunciation: (koun'tur-pärt"), [key]
1. a person or thing closely resembling another, esp. in function: Our president is the counterpart of your prime minister.
2. a copy; duplicate.
3. Law.a duplicate or copy of an indenture.
4. one of two parts that fit, complete, or complement one another.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.