(medicine) Of or pertaining to milk, or the secretion of milk. / Relating to a galaxy. / (astronomy, specifically, sometimes capitalized) Relating to the Milky Way galaxy.

Abbreviation of gallon.

(colloquial) A young woman.

A galileo (unit of acceleration).

(dated, uncountable) The state of being happy or merry. / (dated, countable) Merrymaking or festivity.

the Gaelic language indigenous to Ireland, commonly called Gaeilge or Irish

(informal) Mentally senile. / (informal) Crazy. / (informal) Infatuated.

Alternative form of ga-ga (“game resembling dodgeball”)

(obsolete) A thing whose name cannot be remembered; thingamajig, doohickey. / Any device or machine, especially one whose name cannot be recalled. Often either clever or complicated.

(astronomy, dated) the Milky Way Galaxy, from before it was realized that the Milky Way was not the only "galaxy"