燕雀[enjaku] small birds
燕青拳[enseiken] Yangqingquan
燕巣[ensou] swift's nest (used to make bird's nest soup)
虎燕拳[koenken] Tiger Swallow Fist
燕支[enji] dark-red pigment

燕麦[enbaku] wild oat (Avena fatua)
飛燕[hien] swallow in flight
海燕[umitsubame] storm petrel (any bird of family Hydrobatidae)
燕千鳥[tsubamechidori] small Indian pratincole (bird) (Glareola lactea)

草臥れる[kutabireru] to get tired
遺草[isou] posthumous works
一年草[ichinensou] annual (plant)
詠草[eisou] draft poem
下草[shitakusa] undergrowth

仮名草紙[kanazoushi] story in the kana
伽草子[togizoushi] fairy-tale book
海草[kaisou] marine plant
乾草[kansou] hay
甘草[kanzou] liquorice

飛んでもない[tondemonai] unthinkable
飛竜[peeron] dragon boat (long 22-person canoe used for racing)
一足飛び[issokutobi] (at) one bound
宇宙飛行士[uchuuhikoushi] astronaut
曲飛び[kyokutobi] fancy diving

空飛ぶ[soratobu] to fly in the sky
空飛ぶ円盤[soratobuenban] flying saucer
高飛車[takabisha] high-handed
叱り飛ばす[shikaritobasu] to rebuke strongly
蹴飛ばす[ketobasu] to kick away