Platinum and Pewter

Platinum noun - A heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits.

Pewter and platinum are semantically related. In some cases you can use "Pewter" instead an adjective "Platinum".

Pewter adjective - Of the color gray.

Platinum and pewter are semantically related. Sometimes you can use "Platinum" instead an adjective "Pewter".