Meaning and Usage
The verb 空く (あく) primarily means "to become empty" or "to open." It is often used to describe physical spaces like doors, seats, or rooms becoming vacant or available. It can also refer to time becoming free or available.
Common Contexts
- Physical openings: doors, windows, containers.
- Vacant seats or rooms.
- Free time or availability in a schedule.
Collocations and Patterns
- 席が空く (せきがあく): a seat becomes available.
- 時間が空く (じかんがあく): time becomes free.
- ドアが空く (どあがあく): the door opens.
Register and Politeness
空く is a neutral verb used in everyday conversation and writing. It is neither particularly formal nor informal.
Common Mistakes
Learners sometimes confuse 空く (あく) with 開く (あく), which also means "to open." While both can be read as あく, 開く is more often used for doors, windows, or books opening, emphasizing the action of opening, whereas 空く emphasizes the state of being empty or vacant. However, in many cases, they overlap, so context is important.