一畳[ichijou] one mat
三畳紀[sanjouki] Triassic (geol.)
四畳半[yojouhan] 4.5 tatami mats
重畳[choujou] placed one upon another

上げ畳[agedatami] a tatami finished on both sides
畳みかける[tatamikakeru] to press for an answer
畳み込む[tatamikomu] to fold in
畳む[tatamu] to fold (clothes)

オブジェクト指向言語[obujekutoshikougengo] object-oriented language
コンピュータ用語[konpyuutayougo] computerese
スウェーデン語[suweedengo] Swedish (language)
スペイン語[supeingo] Spanish (language)
スワヒリ語[suwahirigo] Swahili (language)

チャン語[chango] Chinese (language)
ドイツ語[doitsugo] German (language)
フランス語[furansugo] French (language)
プログラム言語[puroguramugengo] programming language
ペルシャ語[perushago] Persian (language)