(baseball) A player for the San Francisco Giants.

(American football) A player for the New York Giants.

A mythical human of very great size.

A noun "giant" represents the race of giants in greek mythology, known as the gigantes, or a jotun.

A very tall and large person.

A tall species of a particular animal or plant.

(astronomy) A star that is considerably more luminous than a main sequence star of the same temperature (e.g. red giant, blue giant).

(computing) An Ethernet packet that exceeds the medium's maximum packet size of 1,518 bytes.

A very large organisation.

A person of extraordinary strength or powers, bodily or intellectual.

(gymnastics) A maneuver involving a full rotation around an axis while fully extended.

Very large.