中西合并

• 口(mouth; rectangular frame)ASSOCIATIVE
• 丨(vertical line through the middle; axis)ASSOCIATIVE

An arrow hitting the center of a target frame is the bull's-eye—that's CENTER.

• 西(west; setting sun with bird on nest)ASSOCIATIVE

A bird returning to its nest as the sun sets in the west depicts the character for west.

• 亼(gather; converge; cover up)ASSOCIATIVE
• 口(mouth; box)RADICAL

A lid sealed tightly over a box's mouth combines into one whole.

• 丷(two diagonal strokes; indicate parallelism)ASSOCIATIVE
• 亚(side by side; equal rank)ASSOCIATIVE

Two parallel strokes on a horizontal base suggest the image of two things standing side by side at the same time.