From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] [news1] [nf21] 燕 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [ichi1] [news1] [nf21] つばめ /tsɯᵝbˈäme̞/, (out-dated or obsolete kana usage) つばくらめ /tsˌɯᵝbäkɯᵝɽˈäme̞/, (out-dated or obsolete kana usage) つばくら /tsˌɯᵝbäkˈɯᵝɽä/, (out-dated or obsolete kana usage) つばくろ /tsˌɯᵝbäkˈɯᵝɽo̞/, () [spec1] ツバメ /tsɯᵝbˈäme̞/
1. (noun (common) (futsuumeishi))
Note: word usually written using kana aloneswallow (bird of the Hirundinidae family), martin
2. barn swallow (Hirundo rustica)
3. 若い燕younger man involved with an older woman