From Longman Dictionary of Contemporary Englishcongratulationscongratulationsa)used when you want to congratulate someone‘I’ve just passed my driving test!’ ‘Congratulations!’congratulations onCongratulations on a superb performance!b)words saying you are happy that someone has achieved somethingGive Oscar my congratulations. →congratulation
Examples from the Corpus
congratulations• Congratulations on passing your driving test.• Congratulations on your new job, Jenny.• Congratulations! Is it a girl or boy?• Sidney sent his congratulations.• Donna was swamped with congratulations from friends and fellowreporters when she won the prize.