American Idioms – Idiom Wizard Lists Over 5,500 Idioms & Slang Descriptions

One-0-one (101)


The basics. Reference to a beginning educational class.Typically university classes have a name plus a number, 101 tends to be the first class in a series on a subject, so it’s used in any situation where one must start at the beginning of a lesson or first steps in a chore.

“Since you are new here, I’m going to give you a  101 summary of our company.”

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