To be able to do something, to have the ability to do something: Luke is sure that if he studies hard enough he can pass the exams at school tomorrow.

1. To be allowed or permitted to do something: Mary said, "You may tell me your opinion, but that doesn't mean that I will change my mind."
2. Used to indicate that something is possible or probable: Greg mentioned, "If you work hard now, you may end up sitting in the supervisor's chair some day.

When capitalized, the fifth month on the Julian calendar: Carol's garden is always spectacular during the month of May just before the weather becomes really hot.

1. Used to express that something is possible: Mrs. Smith said, "We might go if they ask us, but then again we might not."
2. Used to talk about a possible condition that does not or did not actually exist: Steve said, "If you were older, you might understand what your mother is talking about."