The kanji 回 primarily represents the concept of "times," "rounds," "cycles," or "to revolve/turn." It implies a repetition or a circular motion. It can also refer to "an occasion" or "a turn."

・On-yomi (音読み): カイ (kai) ・Kun-yomi (訓読み): まわ(る) (mawa(ru)) - to turn, revolve; まわ(す) (mawa(su)) - to turn (something)

⚫︎一回 Translation: once; one time ⚫︎回数 Translation: number of times, frequency ⚫︎次回 Translation: next time

The kanji 回 is a pictograph. It depicts something turning or rotating. The outer frame likely represents an enclosure or a boundary, while the inner part indicates the motion within that space. Over time, the form has evolved into its current shape, but the core idea of rotation and repetition remains.