What is the difference between grow and increase
Difference in this sense: Support for Mr Thompson is growing/increasing. Thank you.

Question

Answer

Grow is a synonym of increase.
As verbs the difference between grow and increase is that grow is (ergative) to become bigger 
while increase is (of a quantity) to become larger.

As a noun increase is an amount by which a quantity is increased.

Answer

works both ways 
both words sound good

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