(sports) A three-phase equestrian sport consisting of dressage, cross country, and show jumping.

(US, electricity) A type of light switch that can be arranged in pairs to control lights from two locations, as at either end of a stairway or long hallway; a double-throw switch. (Britain): two-way switch.

The start of the last hour of the day on the 24-hour clock i.e. 23:00. / The number two thousand three hundred. / The year 2300.

(idiomatic, archaic) The worth of some trifling or insignificant matter; a whit or jot of value.

A suit consisting of matching jacket, trousers, and waistcoat.

(poker slang) three of a kind kings

(informal) A small, agile group of startup innovators with a big idea, passion, and modest resources.

Quickly.

(games, racing) A race in which a team of two players are joined together at opposite ankles, and must complete a short sprint before the other teams.

(US) A bathroom with a toilet, sink, and shower stall but without a bathtub.