Yes, spares is a Scrabble word!

Verb

1. Refrain from harming

2. Save or relieve from an experience or action

3. Give up what is not strictly needed

4. Use frugally or carefully

5. Furnish with spars

6. Fight with spurs

7. Box lightly

8. Fight verbally

Noun

1. An extra component of a machine or other apparatus

2. An extra car wheel and tire for a four-wheel vehicle

3. A score in tenpins; knocking down all ten after rolling two balls