1. reduce to a smaller amount
To minimise something means to make it smaller or reduce it as much as possible: "We are asking every household to minimise their use of water during the drought." It can also mean to downplay the importance of something: "He minimised the importance of her contribution to the project when he met with investors." You will hear this word used often in professional contexts, in phrases such as 'minimise risk', 'minimise spending', and 'minimize the danger'. You will most often hear this word used in professional situations.