低空跳伞

• 亻(person; human; man)RADICAL
• 氐(low foundation; root base)PHONO-SEMANTIC

A person bending down to the roots is truly at the lowest point.

• 穴(row; gap)RADICAL
• 工(craftsman; work)PHONETIC

An empty cave with nothing inside is just hollow space.

• 足(foot; leg)RADICAL
• 兆(omen; symptom)PHONO-SEMANTIC

Leaping with both feet signals a coming great transformation.

• 人(person; human figure)RADICAL

The character 伞 looks like an umbrella with a person standing underneath the canopy sheltering from rain.