Aforeknown and High hat

High hat and aforeknown are semantically related. In some cases you can use "High hat" instead an adjective "Aforeknown".

High hat noun - A man's hat with a tall crown; usually covered with silk or with beaver fur.

Aforeknown and high hat are semantically related. Sometimes you can use "Aforeknown" instead an adjective phrase "High hat".