お待ち遠さま[omachidoosama] I'm sorry to have kept you waiting
果報は寝て待て[kahouhanetemate] All things come to those who wait
歓待[kantai] warm reception
期待[kitai] expectation
期待値[kitaichi] expected value

期待どおり[kitaidoori] as expected (positive events)
虐待[gyakutai] abuse
供待ち[tomomachi] attendant's waiting room
最恵国待遇[saikeikokutaiguu] most favored nation
請待[shoudai] invitation

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