開あく

1. 1to open (e.g. doors)
2. 2to open (e.g. business, etc.)
3. 3to be empty
4. 4to be vacant ; to be available ; to be free
5. 5to be open (e.g. neckline, etc.)
6. 6to have been opened (of one's eyes, mouth, etc.)
7. 7to come to an end
8. 8to open (one's eyes, mouth, etc.)
9. 9to have a hole ; to form a gap ; to have an interval (between events)

Other writings and readings

JMdict entry 1586270 · frequency rank 50. Source and licence.