- A good friend; a comrade.
- A partner, especially one of a pair or team associated under the buddy system.
- Friend or comrade; chum. Used as a form of familiar address, especially for a man or boy: Watch it, buddy.
- To associate as a buddy or buddies: buddied around with the older guys.
- buddy up To ingratiate oneself, as by presuming friendship: buddied up to the coach in hopes of making the team.