Noun

• S: (n) Confederate (a supporter of the Confederate States of America)
• S: (n) confederate, collaborator, henchman, partner in crime (someone who assists in a plot)
• direct hypernym / inherited hypernym / sister term
• S: (n) accessory, accessary (someone who helps another person commit a crime)
• S: (n) abettor, abetter (one who helps or encourages or incites another)
• S: (n) accessory after the fact (a person who gives assistance or comfort to someone known to be a felon or known to be sought in connection with the commission of a felony)
• S: (n) accessory before the fact (a person who procures or advises or commands the commission of a felony but who is not present at its perpetration)
• S: (n) accessory during the fact (a person who witnesses a crime but does not try to prevent it)
• S: (n) confederate, collaborator, henchman, partner in crime (someone who assists in a plot)
• S: (n) accomplice, confederate (a person who joins with another in carrying out some plan (especially an unethical or illegal plan))

Verb

• S: (v) band together, confederate (form a group or unite) "The groups banded together"
• S: (v) confederate (form a confederation with; of nations)

Adjective

• S: (adj) Confederate (of or having to do with the southern Confederacy during the American Civil War) "Confederate soldiers"
• S: (adj) allied, confederate, confederative (united in a confederacy or league)