pact /pækt/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Language: French ; Origin: pacte , from Latin pactum , from pacisci 'to agree' ]
a formal agreement between two groups, countries, or people, especially to help each other or to stop fighting SYN treaty :
the Warsaw pact
make/sign a pact
The two countries signed a non-aggression pact.
pact with
a defence pact with the USA
pact between
a peace pact between the rebels and the government
⇨ ↑ suicide pact