Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
blackfish is a noun meaning "large dark-colored food fish of the Atlantic coast of North America". It carries 3 recorded senses.
large dark-colored food fish of the Atlantic coast of North America
female salmon that has recently spawned
small dark-colored whale of the Atlantic coast of the United States; the largest male acts as pilot or leader for the school
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for blackfish come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.