In contrast to formal and professional communications, colloquial speech does not adhere to grammar and syntax rules and thus may be considered inappropriate and impolite in situations and settings where etiquette is expected or required.
[9] Formal, colloquial, and vulgar language are more a matter of stylistic variation and diction, rather than of the standard and non-standard dichotomy.
[11][12] A colloquial name or familiar name is a name or term commonly used to identify a person or thing in non-specialist language, in place of another usually more formal or technical name.
Slang refers to words used only by specific social groups, such as demographics based on region, age, or socio-economic identity.
[16] While a standard term may be given a more precise or unique usage amongst practitioners of relevant disciplines, it is often reported that jargon is a barrier to communication for those people unfamiliar with the respective field.