DictionaryallianceCooperative union
noun

alliance

uh-LY-unss/əˈlaɪəns/

A relationship or agreement to work together toward shared goals.

The two neighborhood groups form an alliance to protect the park.

Two community volunteers seal a working partnership with a handshake while jointly carrying a manageable crate of supplies, making agreement and shared practical support visible.
Etymology

“Binding to” supplies the image of parties tied together. Alliance first named a marriage bond, then broadened to combinations for a common purpose and treaties of mutual support.

In context

TED13:30
we can take courage from that alliance with civil society in different countries to support their problem-solving, among the Afghans, inside the Palestinian population, between the peoples of Palestine and Israel.
Jonas Gahr Støre: In defense of dialogue

More examples

  • Their military alliance commits them to mutual defense.
  • An alliance of local shops funds the festival.
  • The parties built new alliances before the election.

Forms

alliance · alliances

ally noun — A person or group that provides shared support.

Similar words

coalition
Often unites distinct groups temporarily for a particular objective.
partnership
Often suggests more direct or continuing shared work.