The Coptic language of Egypt.

(historical) languages spoken by the Allied Powers and borrowed words in Japanese that originated from such languages

(linguistics) "role language": unique language usage serving as a marker of social identity in fictional speech

(idiomatic, proverb) be quick on the uptake, understand the whole situation from just a few clues

(figuratively) a narrow world view based on limited experience

an ordinary person cannot understand the ambitions of a great man

Min Nan

Breton language

the Erzya language

the Faroese language