(to cause something) to become wider, larger, further open

stretch, widen

(to cause something) to become larger

make or grow bigger; increase

(of prices, levels of unemployment, number of people opposing something etc) to increase quickly

increase, be increased

(to cause something) to become larger

extend, augment

to make (something) longer (in space or time)

make larger, longer

(to cause a person, animal) to become fat

grow or make bigger; nourish

stretched out

spread

open up

open up