n.
1) to conclude, sign; negotiate, work out a ~
2) to confirm, ratify a ~ (the senate confirms all treaties)
3) to break, violate a ~
4) to abrogate, denounce a ~
5) a bilateral; commercial, trade; nonaggression; peace; test-ban ~
6) a ~ between; with (a ~ between former foes)
7) a ~ to + inf. (they signed a ~ to settle all border disputes by arbitration)