Simple Definition of pact
: a formal agreement between two countries, people, or groups especially to help each other or to stop fighting
Full Definition of pact
: 4compact; especially : an international treaty
Examples of pact in a sentence
We supported a peace pact between the two countries.
They made a pact to go to the gym together three times a week.
Origin of pact
Middle English, from Middle French, from Latin pactum, from neuter of pactus, past participle of pacisci to agree, contract; akin to Old English fōn to seize, Latin pax peace, pangere to fix, fasten, Greek pēgnynai
First Known Use: 15th century
PACT Defined for Kids
Seen and Heard
What made you want to look up pact? Please tell us where you read or heard it (including the quote, if possible).