Giant
Part of speech: noun
Definition: A mythical human of very great size Specifically, any of the Gigantes, the race of giants in the Greek mythology. A very tall person. A star that is considerably more luminous than a main sequence star of the same temperature (eg. red giant, blue giant). An Ethernet packet that exceeds the medium's maximum packet size of 1,518 bytes. A very large organisation.
Part of speech: adjective
Definition: Very large.
Example sentence: People think our work is monumental because it's art, but human beings do much bigger things: they build giant airports, highways for thousands of miles, much, much bigger than what we create.
Colossus
Part of speech: noun
Definition: A statue of gigantic size. The name was especially applied to certain famous statues in antiquity, as the Colossus of Nero in Rome and the Colossus of Rhodes, one of the Seven Wonders of the Ancient World.Any creature or thing of gigantic size.