(fandom slang) A fan of the novel The Lord of the Rings by J. R. R. Tolkien and/or the film trilogy based on it.

Someone who rings, especially a bell ringer.

(mining) A crowbar.

(games) In the game of horseshoes, the event of the horseshoe landing around the pole.

(uncountable, games) A game of marbles where players attempt to knock each other's marbles out of a ring drawn on the ground.

A ringer T-shirt.

(sports) A person highly proficient at a skill or sport who is brought in, often fraudulently, to supplement a team.

(horse racing) A horse fraudulently entered in a race using the name of another horse.

A person, animal, or entity which resembles another so closely as to be taken for the other, now usually in the phrase dead ringer.

(UK, slang) A fraudulently cloned motor vehicle.

(Australia) The champion shearer of a shearing shed.

(Australia) A stockman, a cowboy.

(slang) Any person or thing that is fraudulent; a fake or impostor.

(slang) A look-alike.

(UK, military, informal, in combination) An officer having the specified number of rings (denoting rank) on the uniform sleeve.