- gauntAngular, bony, and lean.
- gensA legally defined unit of Roman society, being a collection of people related through a common ancestor by birth, marriage or adoption, possibly over many generations, and sharing the same nomen gentilicium.
- geno-genetics - e.g. genotype
- genticideThe killing of a race or nation of people; the slaughter of an ethnic group; a genocide.
- tercel gentleA male falcon.