(translation studies) vocal language/oral language as opposed to sign language

(translation studies) a C language

(translation studies) a B language

ancient language

to stick one's tongue out

(figuratively) to hold one's tongue, to keep quiet

sign language

any of the Old Spanish dialects during the Middle Ages / any of the southern European Romance languages during the Middle Ages in which the word for yes was si, particularly Italian dialects, by opposition to langue d'oc and langue d'oïl

wooden language, waffle (speech that is vague, pretentious or evasive) / cant (empty hypocritical talk)

the Dutch language