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

の向かいに[nomukaini] opposite of
一向[hitaburu] nothing but
直向[hitamuki] earnest
向きに成る[mukininaru] to become serious
オブジェクト指向[obujekutoshikou] object-oriented

オブジェクト指向言語[obujekutoshikougengo] object-oriented language
コンシューマ向け製品[konshuumamukeseihin] consumer products
一向[ikkou] completely
一向に構わない[ikkounikamawanai] doesn't care at all
陰日向[kagehinata] double-faced

御構いなく[okamainaku] please don't fuss over me
サーボ機構[saabokikou] servomechanism
シフト演算機構[shifutoenzankikou] shift arithmetic unit
ヒグス機構[higusukikou] Higgs mechanism (physics)
遺構[ikou] remains

一向に構わない[ikkounikamawanai] doesn't care at all
一般命令演算機構[ippanmeireienzankikou] general instruction unit (computer)
機構[kikou] mechanism
気構え[kigamae] readiness
虚構[kyokou] fiction