The third gear of a gearbox.
The person or thing in the third position.
One of three equal parts of a whole.
third base
A third-class degree, awarded to the lowest achievers in an honours degree programme
An interval consisting of the first and third notes in a scale.
A handicap of one stroke every third hole.
To agree with a proposition or statement after it has already been seconded.
To divide into three equal parts.
The ordinal form of the cardinal number three; Coming after the second.
The third gear of an engine.