The term LET FLOW can be summarized by two crossword solutions: POURED (6 letters) and UNDAM (5 letters). POURED is an action verb meaning to cause a liquid or other substance to flow out of a container, while UNDAM is a noun referring to a structure built across a river or other body of water to prevent flooding. Both words refer to the idea of allowing something to flow freely, which is the essence of the term LET FLOW.