Definition: Colloquialism is a term used in modern American English to describe casual, informal communication between people or groups. It typically means non-formal conversation that might not be considered formal. Colloquial language often involves slang, colloquial expressions, and informal sentences rather than grammatical rules, making it easier for listeners to understand without any rigorous writing or spelling requirements. In the Bible, a colloquialism is not explicitly mentioned but could refer to casual or conversational conversation.