to (make something) become larger in amount or size: Incidents of armed robbery have increased over the last few years. increase dramatically/significantly The cost of the project has increased dramatically / significantly since it began. increase something to something Gradually increase the temperature to boiling point.

to become greater in amount, number, value, etc.; to make something greater in amount, number, value, etc.

To increase is to become greater or more in number, amount, size, or in some other way, as in Our profits will increase as demand increases. As a verb, increase is also used in an active way in which someone or something is doing the increasing, as in I’m going to increase my hours at work or These sunglasses increase visibility.

increase vb to make or become greater in size, degree, frequency, etc; grow or expand