The ordinal form of the number four.

(in the singular) The person or thing in the fourth position. / (chiefly US) A quarter, one of four equal parts of a whole. / (in the singular) The fourth gear of an engine.

(informal) To agree with a proposition or statement after it has already been thirded.

(US) The Fourth of July.

plural of fourth

The quality of being or coming fourth.

simple past tense and past participle of fourth

present participle of fourth

The ordinal form of the number twenty-four.

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