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

機関[karakuri] mechanism
アナログ計算機[anarogukeisanki] analog computer
エンジン発動機[enjinhatsudouki] engine
サーボ機構[saabokikou] servomechanism
シフト演算機構[shifutoenzankikou] shift arithmetic unit

ジェット機[jettoki] jet aeroplane
弾機[hatsujou] spring (e.g. coil, leaf)
ヒグス機構[higusukikou] Higgs mechanism (physics)
プロペラ機[puroperaki] propeller-driven aircraft
圧延機[atsuenki] rolling machine