(cricket) A fielding position to the off side of the third slip.

(obsolete) A hypothetical fourth class of civic subjects, or fourth body (in Britain, after the Crown, and the two Houses of Parliament) which governed legislation.

(grammar) A variety of the third person sometimes used for indefinite referents, such as one, as in one shouldn't do that.

(performing arts, idiomatic) The imaginary invisible wall at the front of the stage in a proscenium theatre, through which the audience sees the action in the world of the play.

(soccer) The official who keeps things at the dugout in order, and displays substitutions and the amount of injury time

The national holiday of Independence Day in the United States, celebrated on the fourth day in July to mark the anniversary of the signing of the Declaration of Independence from Great Britain in 1776.

(chiefly US) A cocktail containing one part grenadine syrup, one part vodka, and one part blue curaçao, reminiscent of the red, white, and blue colours of the United States flag, often poured in layers so that the colours do not mix when the drink is served.

Three of four equal parts (3/4, ¾, 0.75).

Any of a number of people who have a common great-great-great-grandparent.

(bowed string instruments) pinky (smallest finger) / (keyboard instruments) ring finger