The third gear of an engine.

(baseball) The infield defensive player that stands near third base.

(informal) Intensive rough interrogation in order to extract information or a confession

Alternative letter-case form of third way

(historical) Germany under the Nazi regime, beginning in January 1933 and ending in May 1945.

The ordinal form of the number twenty-three.

Of or from the Third World.

(linguistics, with "the") The words, word-forms, and grammatical structures, taken collectively, that are normally used of people or things other than the speaker or the audience.

The person or thing in the twenty-third position. / One of twenty-three equal parts of a whole.

The electrified rail that runs beside or between train tracks to power electric trains. / (by extension) Anything that is dangerous to come into contact with, or is best avoided.