gallery vs excavation

gallery and excavation both are nouns.

Word	Noun	Adjective	Verb	Adverb
gallery	Yes	No	No	No
excavation	Yes	No	No	No

gallery (noun)	excavation (noun)
narrow recessed balcony area along an upper floor on the interior of a building; usually marked by a colonnade	the act of extracting ores or coal etc from the earth
a covered corridor (especially one extending along the wall of a building and supported with arches or columns)	the act of digging
a long usually narrow room used for some specific purpose	a hole in the ground made by excavating
a room or series of rooms where works of art are exhibited	the site of an archeological exploration
a porch along the outside of a building (sometimes partly enclosed)
a horizontal (or nearly horizontal) passageway in a mine
spectators at a golf or tennis match