Yes, silver is a Scrabble word!

Verb

1. Coat with a layer of silver or a silver amalgam

2. Make silver in color

3. Turn silver

Adjective

1. Made from or largely consisting of silver

2. Having the white lustrous sheen of silver

3. Of lustrous grey; covered with or tinged with the color of silver

4. Expressing yourself readily, clearly, effectively

Noun

1. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

2. Coins made of silver

3. A light shade of grey

4. Silverware eating utensils

5. A trophy made of silver (or having the appearance of silver) that is usually awarded for winning second place in a competition