also: つばくらめ · つばくら · つばくろ
noun
swallow; martin
General term for swallows and martins (family Hirundinidae). Sense 2 specifies the barn swallow (Hirundo rustica), the most common species in Japan.
春になると燕が巣を作りに戻ってくる。
In spring, the swallows come back to build their nests.
I found a swallow's nest under the eaves.
noun
younger man in an age-gap relationship; boy toy
Slang for a younger man romantically involved with an older woman. Often used in the phrase 若い燕 (わかいつばめ).
See also: 若い燕
彼女は若い燕を連れてパーティーに現れた。
She showed up at the party with a younger boyfriend.