grows
v.v. to become larger in size or amount over time. You use this when talking about plants, children, or even a business getting bigger.
v. to increase in size, number, or intensity through a natural or developmental process. This third-person singular form is often used as a linking verb to describe a change in state.
The small plant grows quickly in the sun.
As the city grows, new schools and hospitals are built to support the increasing population.
The tension in the room grows with every passing minute as the jury prepares to deliver its final verdict on the high-profile case.
The verb can be intransitive or transitive; it also functions as a linking verb followed by an adjective to describe becoming something.
The child grows very fastlyThe child grows very fastGrows is often followed by an adjective or a simple adverb; 'fastly' is not a valid English word.