1. noun /fləʊ/
a) The movement of a fluid.
The room was small, but it had good symmetry and flow.
b) The rising movement of the tide.
Turn on the valve and make sure you have sufficient flow.
2. verb /fləʊ/
a) To move as a fluid from one position to another.
The writing is grammatically correct, but it just doesnt flow.
b) To move or match smoothly, gracefully, or continuously.
Wikipedia foundation.