inattentive to their own diction (choices of vocabulary and style of expression). An expression is labeled colloq. for "colloquial" in dictionaries when a different expression is preferred in formal usage, but this does not mean that the colloquial expression is necessarily slang or non-standard.

Some colloquial language contains a great deal of slang, but some contains no slang at all. Slang is often used in colloquial speech,