say it: KA-plin
caplin is a noun meaning "very small northern fish; forage for sea birds and marine mammals and other fishes". It is pronounced /ˈkæplɪn/ — KA-plin. It carries one recorded sense.
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 caplin come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.