Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
gratulatory is an adjective meaning "expressive of sympathetic pleasure or joy on account of someone's success or good fortune". It carries one recorded sense.
expressive of sympathetic pleasure or joy on account of someone's success or good fortune
“a congratulatory telegram”
“the usual congratulatory crowd was conspicuously absent”
“a gratulatory address”
Definitions, synonyms and semantic relations for gratulatory come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.