B1
to get bigger or to make something bigger in amount or size
Dictionary examples:
My desire to nap increases every time I open a textbook. (0.0)
My ability to make up stories increases when I forget to do my homework. (0.0)
The volume of my laughter increases when I try to be quiet in class. (0.0)
Sales of laptops have increased over the last few years. (20.6)
Gradually increase the temperature to the boiling point. (32.9)
The cost of the project has increased dramatically/significantly since it began. (64.3)