S: (n) fish (fish%1:05:00::) (any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills) "the shark is a large fish"; "in the living room there was a tank of colorful fish"
S: (n) caste (caste%1:14:00::) (in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony)