共通語 (きょうつうご)common language; lingua franca; standard language (language variety understood throughout a country)

common language; lingua francanoun (common) (futsuumeishi)
standard language (language variety understood throughout a country)noun (common) (futsuumeishi)

共通語, its kanji, and other words that share them.Open this graph

Kanji in 共通語

グアテマラ共和国グアテマラきょうわこくRepublic of Guatemala
共同きょうどうdoing together (as equals); sharing
共産党きょうさんとうCommunist Party
公共こうきょうpublic (facilities, service, etc.); communal
共同体きょうどうたいcooperative body; cooperative system
共通きょうつうcommon; shared
朝鮮民主主義人民共和国ちょうせんみんしゅしゅぎじんみんきょうわこくDemocratic People's Republic of Korea (North Korea); DPRK
共和きょうわrepublican; cooperative
見通しみとおしunobstructed view; perspective
通信つうしんcorrespondence; communication
交通こうつうtraffic; transportation
普通ふつうnormal; ordinary
通常つうじょうusual; ordinary
通産省つうさんしょう(former) Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry); MITI
通貨つうかcurrency
日本語にほんごJapanese (language)
英語えいごEnglish (language)
物語ものがたりtale; story

See how 共通語 connects to the rest of Japanese.