或
huò
maybe
perhaps; might; possibly; or
weapon (戈) + mouth (口) + ground (一) = one uncertain territory among many
The original pictograph showed a territory marked by a boundary line with a weapon guarding it — one plot of land among potentially many. From 'a certain place' the meaning extended to vagueness: one possibility among others, hence 'perhaps' or 'or'.
一OneSemantic
口MouthSemantic
戈A halberdSemantic
你或他都可以来。
nǐ huò tā dōu kě yǐ lái。
You or he can both come.
她今天或明天会回来。
tā jīn tiān huò míng tiān huì huí lái。
She will come back today or tomorrow.