Synonyms for Congratulate (same or very similar meaning)
WordNet sense 1 (be proud of):
plume, prideWordNet sense 2 (pride or congratulate (oneself) for an achievement):
preenWordNet sense 3 (express congratulations):
felicitateWordNet sense 4 (say something to someone that expresses praise):
complimentFrom the ODE community, based on WordNetadd/edit