IPA: /ˈfɪnˌfɪʃ/
KK: /ˈfɪnˌfɪʃ/
A type of fish that has fins and lives in water.
Salmon is a popular finfish that many people enjoy eating.
Finfish is formed from "fin" (from Old English "finn", meaning a membranous appendage) and "fish" (from Old English "fisc", meaning a gilled aquatic animal). The term refers to fish that have fins, distinguishing them from shellfish or other aquatic animals without fins.
Think of 'fins' as the 'membranous appendages' that help fish swim, and remember that 'finfish' refers to those fish that have these fins.