Hickey and Verdigris

Hickey noun - A small article the actual name of which one either does not know or cannot remember.

Verdigris and hickey are semantically related. In some cases you can use "Verdigris" instead a noun "Hickey".

Verdigris noun - A green patina that forms on copper or brass or bronze that has been exposed to the air or water for long periods of time.

Hickey and verdigris are semantically related. Sometimes you can use "Hickey" instead a noun "Verdigris".