回

back, circle

回 depicts the track of whirl, then it simplifies to two squares.

Vocabulary of 回

回應 (response)
回信 (letter in reply)
回憶 (to recall
memories)
來回 (back and forth)

Classification

Related Characters:

囗enclosure3 囚prisoner5 四four5 囝child
son6 囡child
daughter 6 因cause
reason6 囟fontanel 6 回back
circle6 囧light
brightness7 困stranded7 囪chimney7 圃garden
orchard10 圂pigsty10 國country
state11 圉prison
jail11 圈ring
circle11 圍enclose
surround12 園park
garden13 圓circle
round13