北回归线

• ⼔(person turning back; figure of person from behind)ASSOCIATIVE

Two people standing back-to-back represent North, the direction ancients faced away from.

• 囗(outer ring; circumference)RADICAL
• 口(circular shape; ring)ASSOCIATIVE

Nested spirals symbolize the act of returning.

• 彐(broom (radical))RADICAL
• 刀(knife; blade)ASSOCIATIVE

Returning home with a broom and knife ready to clean and settle down.

• 糸(thread; silk)RADICAL
• 泉(stream; water)PHONETIC

A thin thread flows like a small stream running long and continuously.