Definition from Wiktionary, the free dictionary
Alternative forms 
- aggrandize (North American)
- (transitive) To make great; to enlarge; to increase; as, to aggrandise our conceptions, authority, distress.
- (transitive) To make great or greater in power, rank, honour or wealth; applied to persons, countries, etc.
- (transitive) To make appear great or greater; to exalt.
- (intransitive) To increase or become great.
- The boss' son was merely trying to aggrandise himself with the board.