Congratulate
Definition 1 of 2
Pro Tip 1/3
Achievement Focus
Use 'congratulate' when someone reaches an important milestone or success. Congratulate her on her recent promotion.
Pro Tip 2/3
Sincerity Matters
Express genuine happiness when congratulating, as insincerity can be easily sensed. When you congratulated me on my project, I felt your sincerity.
Pro Tip 3/3
Not Sarcastic
Avoid using 'congratulate' sarcastically since it can offend or confuse others. Congratulate him genuinely, not with a sarcastic tone.