Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
tom-tom is a noun meaning "any of various drums with small heads". It carries one recorded sense.
any of various drums with small heads
Definitions, synonyms and semantic relations for tom-tom come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.