Yes, suns is a Scrabble word!

Verb

1. Expose one's body to the sun

2. Expose to the rays of the sun or affect by exposure to the sun

Noun

1. The star that is the source of light and heat for the planets in the solar system

2. The rays of the sun

3. A person considered as a source of warmth or energy or glory etc

4. Any star around which a planetary system revolves

5. First day of the week; observed as a day of rest and worship by most Christians