"Langs" is a colloquialism that is often used as a shorthand for the word "languages." However, there are several other synonyms that can be used to refer to the same concept. Some commonly used synonyms for "langs" include "tongues," "dialects," "speeches," and "vernaculars." Other similar terms include "jargons," "idioms," and "lexicons." Each of these words refers to the way in which people communicate through the use of language. While all of these synonyms can be used in place of "langs," they may carry slightly different connotations or be better suited for specific situations or contexts.