一も二も無く[ichimonimonaku] unhesitatingly
一言二言[hitokotofutakoto] a word or two
一石二鳥[issekinichou] killing two birds with one stone
一二に及ばず[ichininioyobazu] right away
一姫二太郎[ichihimenitarou] It's good to have a girl first and then a boy

うり二つ[urifutatsu] as alike as two melons (two peas in a pod)
黄道十二宮[koudoujuunikyuu] twelve signs of the zodiac
二度[futatabi] again
最小二乗法[saishounijouhou] least-squares method
三十二分音符[sanjuunibuonpu] 32nd note

カーソル強調[kaasorukyouchou] cursored emphasis
意志の強い[ishinotsuyoi] strong-minded
引き剥し強度[hikihagashikyoudo] peel strength (conductor from substrate)
引っ張り剪断強度[hipparisendankyoudo] peel strength (conductor from substrate)
俄勉強[niwakabenkyou] cramming

簡明強固[kanmeikyouko] plain and sturdy
関係強化[kankeikyouka] strengthening of relations
頑強[gankyou] dogged
強い[tsuyoi] strong
強いて[shiite] by force

雄蕊[yuuzui] stamen
雌蕊[shizui] pistil
花蕊[kazui] center of a flower (centre)

二強雄蕊[nikyouyuuzui] didynamous stamen
四強雄蕊[shikyouyuuzui] tetradynamous stamen

英雄[eiyuu] hero
英雄的[eiyuuteki] heroic
雄牛[oushi] bull
雄羊[ohitsuji] ram
群雄[gunyuu] rival chiefs

群雄割拠[gunyuukakkyo] rivalry of local warlords
雌雄[shiyuu] male and female (animal)
反英雄[haneiyuu] antihero
雄壮[yuusou] heroic
雄たけび[osakebi] war cry