ABCs and Lowdown

ABCs noun - The elementary stages of any subject (usually plural).

Lowdown and ABCs are semantically related in account topic. In some cases you can use "Lowdown" instead a noun "ABCs", when it comes to topics like detail, written description of past events.

Lowdown noun - Information not generally available to the public.

ABCs and lowdown are semantically related in account topic. Sometimes you can use "ABCs" instead a noun "Lowdown", if it concerns topics such as written description of past events.