Definitions

1. noun

a formal agreement or contract between two or more parties, especially one involving a promise of mutual support or cooperation

“The two countries signed a pact to reduce carbon emissions by 2030.”

2. verb

to make a secret agreement or come to a mutual understanding

“The two friends pacted to keep the surprise party a secret.”

3. noun

a mutual agreement or understanding

“There is a pact between the two friends not to tell each other’s secrets.”