In Canada, the federal union of provinces and territories which formed Canada, beginning with New Brunswick, Nova Scotia, Ontario, and Quebec, and later including all the others.

A union or alliance of states or political organizations. / The act of forming an alliance.

plural of confederation

Relating to a confederation.

In the manner of confederates.

plural of Confederate

present participle of confederate

simple past tense and past participle of confederate

(transitive, intransitive) To combine in a confederacy.

A member of a confederacy. / An accomplice in a plot. / (psychology) An actor who participates in a psychological experiment pretending to be a subject but in actuality working for the researcher.