下划线

• 一(horizontal line; boundary)RADICAL
• 卜(stroke descending downward)ASSOCIATIVE

A vertical stroke pointing downward across a boundary line marks 'below'.

• 戈(weapon; spear)ASSOCIATIVE
• 刂(knife; blade)RADICAL

Use a spear and blade to mark and divide boundaries.

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

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