9 letters
- spaceship20
- spareribs15
- sparriest12
- spearfish17
- spheroids15
- spirogyra16
- splashier15
- spoilages15
- sporocarp18
- spriggers16
- springers15
- stoppages17
- storeship14
- strappers15
- strippers15
- stroppers15
- stroppier15
- superiors13
- superpros16
- trigraphs16
- troopship17
- upraisers13
- vaporises16
- warhorses14
- worshiper17
- zoospores21