JMdict: 1177350

つばめ 【つばめ】

1. [n] swallow (bird of the Hirundinidae family); martin
2. [n] barn swallow (Hirundo rustica)
3. [n] younger man involved with an older woman; boy toy

Words often seen with this one: (experimental feature)

世界 (29), 魔法少女 (28), 用 (28)