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

御出でになる[oideninaru] to be
御目出度う御座います[omedetougozaimasu] congratulations
曝け出す[sarakedasu] to expose
出来るようになる[dekiruyouninaru] (something) has become possible
グループ見出し[guruupumidashi] group heading

圧出[asshutsu] pressing out
案出[anshutsu] contrivance
移出[ishutsu] export
溢れ出る[afurederu] to overflow from something full
逸出[isshutsu] escape

一段[ichidan] more
一段動詞[ichidandoushi] ichidan verb (one of the two main conjugation classes of verbs in modern Japanese, usually ending in -eru or -iru)
一段落[ichidanraku] completing the first stage
階段[kaidan] stairs
格段[kakudan] special

計画段階[keikakudankai] planning stage
決済手段[kessaishudan] method of payment
減段[gentan] reduction (of crop size)
五段[godan] Japanese verb group
五段動詞[godandoushi] godan verb (one of the two main conjugation classes of verbs in modern Japanese, usually ending in -u, -ku, -su, -tsu, -gu, -bu, -mu, etc.)

お花見[ohanami] cherry blossom viewing
御見えになる[omieninaru] to arrive
御見舞[omimai] calling on someone who is ill
様を見ろ[zamawomiro] serves you right!
じっと見る[jittomiru] to watch steadily

ジロジロ見る[jirojiromiru] to stare at
まじまじと見る[majimajitomiru] to take a long hard look at something
見す見す[misumisu] before one's own eyes
グループ見出し[guruupumidashi] group heading
意見[iken] opinion