愛憎併存[aizouheison] ambivalence
兼併[kenpei] uniting
併せる[awaseru] to match (rhythm, speed, etc.)
合併症[gappeishou] complications (in an illness)
併し[shikashi] however

併し乍ら[shikashinagara] however
併せて[awasete] in all
併せ考える[awasekangaeru] to consider together
併せ用いる[awasemochiiru] to use jointly
併も[shikamo] moreover

安全期[anzenki] safe period
暗黒期[ankokuki] eclipse period
一期[ichigo] one's life time
一期[ikki] one term
一期一会[ichigoichie] once-in-a-lifetime encounter (hence should be cherished as such)

一周期[isshuuki] period (in astronomy)
一定期間[itteikikan] fixed interval
延期[enki] postponement
延期になる[enkininaru] to be postponed
沖積期[chuusekiki] alluvial period

コンピューター援用生産[konpyuutaaenyouseisan] computer-aided manufacture
コンピューター援用設計[konpyuutaaenyousekkei] computer-aided design
コンピュータ用語[konpyuutayougo] computerese
スキー用品[sukiiyouhin] ski outfit
愛用[aiyou] favorite

悪用[akuyou] abuse
医学用語[igakuyougo] medical term
医用[iyou] medical use
医療用[iryouyou] medical use
一人用[hitoriyou] for one person's use

圧し石[oshiishi] stone weight
一石[isseki] one game (of go)
一石二鳥[issekinichou] killing two birds with one stone
英国石油[eikokusekiyu] British Petroleum
下石[shitaishi] nether millstone

化粧石鹸[keshousekken] toilet soap
化石[kaseki] fossil
化石学[kasekigaku] paleontology
化石層[kasekisou] fossil bed
化石燃料[kasekinenryou] fossil fuel

御金[okane] money
金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
違約金[iyakukin] penalty for contract breach
一刻千金[ikkokusenkin] every moment is precious
一字千金[ichijisenkin] word of great value

一時金[ichijikin] lump sum
一時賜金[ichijishikin] lump-sum grant
引き金を引く[hikiganewohiku] to pull the trigger
引当金[hikiatekin] reserves
隠れ借金[kakureshakkin] hidden debts