1. plural of colloquiality; informal or conversational words, phrases, or expressions characteristic of everyday speech rather than formal writing
Usage: usually plural; formal linguistics term
2. the quality or state of being colloquial; the use of informal, conversational language
Usage: abstract noun use; less common than plural sense

Examples

• The author's use of colloquialities made the dialogue feel authentic and natural.
• Regional colloquialities can make it difficult for non-native speakers to understand casual conversation.
• The essay was too informal; the teacher asked him to replace colloquialities with standard English.
• Colloquialities like 'gonna' and 'wanna' are common in spoken English but rare in academic writing.
• The novel captures the colloquialities of Southern dialect through its characters' speech.
• Linguists study colloquialities to understand how language varies across different social groups.