Longman Dictionary of Contemporary English - happy

~ adj 1 having feelings of pleasure, for example because something good has happened to you  (Larry looked really happy when we gave him his present. | He was a happy child who rarely cried. | be happy to be doing sth)  (They felt happy to be going home. | happy that)  (I'm happy that everything worked out well in the end. | be/feel happy for sb)  (I felt really happy for you when I heard you'd passed your exams.)  (- opposite sad (1)) 2 a happy time, place, occasion etc is one that makes you feel happy  (Some people say that your schooldays are the happiest time of your life. | a happy ending)  (The story has a happy ending.) 3 satisfied or not worried + abou  (I'm not happy about Dave riding around on that motorbike.)  (Are you happy with your new car?) keep sb happy  (I pretended to agree with her, just to keep her happy.) 4 be happy to do sth to be very willing to do something, especially to help someone  (I'd be happy to take you in my car.) 5 Happy Birthday/Christmas/Anniversary etc used when greeting someone on their birthday, at Christmas etc 6 the happy event the time when a baby is born or when two people get married 7 a happy medium a way of doing something that is somewhere between two possible choices and that satisfies everyone 8 happy as a lark very happy 9 not a happy bunny BrE /not a happy camper AmE humorous someone who is not pleased about a situation 10 formal suitable  (His choice of words was not a very happy one.)