穴
あな · ana · JLPT N3 · noun
hole
🕳️ 穴 = 宀 roof + 八 split apart: a roof with an opening is a hole
穴 started as a drawing of a cave dwelling: 宀 is the roof and 八 marks the opening below it. Sound hook: ana sounds like 'an a…' in 'an opening'. It also appears in 穴場 (anaba), a hidden gem spot.