1.
to be empty, to be uncrowded
A place that is not crowded or has few people.
The restaurant is always uncrowded at this time of day, so you can eat in peace.
2.
to be vacant, to be available
A seat or space that is unoccupied and available for use.
空いている is the ている form of 空く, describing the state of being empty or uncrowded.
BASE VERB:
ASPECT (ている):
- 空いている describes a resulting state: 'is empty/uncrowded'
COMMON PATTERNS:
ANTONYM:
- 混んでいる (to be crowded)
NOTE: Don't confuse with お腹が空いている (to be hungry), which uses the same verb but refers to an empty stomach.