the ground / earth, dirt, mud, soil / the earth (as opposed to the heavens) / the ground or bottom of something (as of a price range)

place, area

a colony (region or governmental unit)

short span of time

(science fiction) Synonym of タイムトラベル (taimu toraberu, “time travel”)

time zone

half-hour (a period of time equal to thirty minutes, half an hour)

time limit; maximum time allowed

summer time (daylight-saving time)

(idiomatic) to kill time