ちょっと一杯[chottoippai] let's have a quick drink
ばつ一[batsuichi] being once divorced
一向[hitaburu] nothing but
サラダ一皿[saradahitosara] plate of salad

安全第一[anzendaiichi] safety first
一か八か[ichikabachika] sink or swim
一っ走り[hitoppashiri] spin (as in 'take a car for a spin')
一つ一つ[hitotsuhitotsu] one-by-one

いかなる場合でも[ikanarubaaidemo] in any case
このような場合に[konoyounabaaini] in this kind of situation
この場合[konobaai] in this case
そうでない場合は[soudenaibaaiha] if this is not the case
その場合には[sonobaainiha] in that case

繋ぎ合わせる[tsunagiawaseru] to connect
どの場合にも[donobaainimo] in any case
シアン化合物[shiankagoubutsu] cyanide
ボクシングの試合[bokushingunoshiai] boxing bout
亜米利加合衆国[amerikagasshuukoku] United States of America

御目出度う御座います[omedetougozaimasu] congratulations
駄目になる[dameninaru] to spoil
繋ぎ目[tsunagime] joint
軽目焼[karumeyaki] hard caramelized sugar candy
駄目押し[dameoshi] making doubly sure

一つ目[hitotsume] one-eyed
一合目[ichigoume] the start of a climb up a hill
一丁目[icchoume] Block 1
ひと目[ichimoku] (a) glance
一目惚れ[hitomebore] to be taken with someone at first sight (similar to "love at first sight", but not as strong)