What does 空く mean?
空く is a Japanese verb meaning “to open, to become empty (vacant)” in English. It can also be translated as “to be empty, to be vacant, to have been opened (of one's eyes, mouth, etc.)” depending on context. It is written as 空く in kanji, あく in hiragana, and aku in romaji. This word is part of JLPT N4 vocabulary.
Example sentences
１塁があいていたので打者を歩かせた。
With first base open, he walked the batter.
放課後は空いてますか？
Are you free after school?
その皮製の上着の両肘部分が擦り減って穴が空いた。
The leather jacket has worn out at the elbows.