Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
trotline is a noun meaning "a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)". It carries one recorded sense.
a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)
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 trotline come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.