col·lo·qui·al 
/kəˈloʊkwijəl/ adjective
/kəˈloʊkwijəl/ adjective [more colloquial; most colloquial] 1 : used when people are speaking in an informal way
▪ a colloquial word/expression 2 : using an informal style
▪ a colloquial writer
▪ a colloquial word/expression
▪ a colloquial writer
— col·lo·qui·al·ly adverb
▪ The phrase is used colloquially but not in writing. ▪ The drink is known colloquially as a “brown cow.”
▪ The phrase is used colloquially but not in writing. ▪ The drink is known colloquially as a “brown cow.”
