Merriam-Webster's Collegiate Dictionary:
gate
gate-crash
gate-crasher
gateau
gated
gatefold
gatehouse
gatekeeper
gatekeeping
gateleg table
gatepost
gates
gates of the arctic national park
gateshead
gateway
gateway drug
gath
gather
gatherer
gathering
gatineau
gatling gun
gator
gatsbyesque
gatt
gatun lake
gauche
gauchely
gaucheness
gaucher's disease
gaucherie
gaucho
gaud
gaudeamus igitur
gaudery
gaudily
gaudiness
gaudy
gauffer
gauge
gauge theory
gauged
gauger
gauguin
gauguinesque
gaul
gauleiter
gaulish
gaulle, de
gaullism
gaullist
gault
gaum
gaunt
gauntlet
gauntleted
gauntly
gauntness
gaur
gauss
gaussian
gaussian curve
gaussian distribution
gautama buddha
gauteng
gautier
gauze
gauzelike
gauzily
gauzy
gavage
gavarnie
gave
gave de pau
gavel
gavel-to-gavel
gavelkind
gavial
gavins point dam
gavotte
gawain
gawk
gawker
gawkily
gawkiness
gawkish
gawkishly
gawkishness
gawky
gawp
gawper
gay
gay-lussac
gaya
gaydar
gayety
gayly
