Definitions

1. noun

a person who joins with others in a league or union, especially for mutual protection or advantage; a member of a confederacy

“The confederate states fought against the Union during the American Civil War.”

2. verb

to join or unite with others in a league or union, especially for mutual protection or advantage

“The neighboring towns decided to confederate against the common threat.”

3. verb

to bring or come together in a league or union, especially for mutual protection or advantage

“The city confederated with neighboring cities to form a regional government.”