Other forms: merits; merited; meriting
Merit means "worthiness or excellence." If you receive a certificate of merit in school, you are being recognized for doing a good job. As a verb, merit means "deserve." Your certificate might merit a prominent place on your bulletin board!
You will often hear the phrases "merit-based promotion" and "merit-based pay," which come up when employees are pushing against a system in which time on the job — and not job performance — determines when workers are promoted and how much they are paid. Using the word merit suggests impartiality and objectivity — such as when you swear off a prejudiced approach to something and vow to "judge it on its merits."