アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
圧搾器[assakuki] compression
圧力調整器[atsuryokuchouseiki] pressure regulator
安全器[anzenki] safety device
安定器[anteiki] stabilizer

医療器械[iryoukikai] medical appliances
育雛器[ikusuuki] breeder
化学兵器[kagakuheiki] chemical weapons
化学兵器禁止条約[kagakuheikikinshijouyaku] chemical weapons ban treaty
加減抵抗器[kagenteikouki] rheostat

悪投[akutou] wild pitch
意気投合[ikitougou] hit it off with (a person)
一挙手一投足[ikkyoshuittousoku] slight effort
一般投票[ippantouhyou] referendum
円盤投げ[enbannage] discus throw

下手投げ[shitatenage] underhand throw
海外投資[kaigaitoushi] overseas investment
外国投資家[gaikokutoushika] foreign investor
間投詞[kantoushi] interjection
空中投下[kuuchuutouka] airdrop

一本槍[ipponyari] guiding principle
槍玉[yaridama] victim
竹槍[takeyari] bamboo spear
横槍[yokoyari] interruption

投げ槍[nageyari] javelin
槍先[yarisaki] spearhead
槍投げ[yarinage] javelin (throw)
槍持ち[yarimochi] spear carrier (for the master of a samurai family)