Answer: deepens

AnswerCrossword Clue
DEEPENSDredges
DEEPENSBecomes more complicated.
DEEPENSBecomes more complex.
DEEPENSBecomes more profound.
DEEPENSReams.
DEEPENSBecomes intense.
DEEPENSDarkens, as a color.
DEEPENSBecomes darker.
DEEPENSBecomes profound
DEEPENSIntensifies.
DEEPENSGets more interesting, say
DEEPENSGoes lower
DEEPENSGrows more intense
DEEPENSIncreases in intensity
deepensMake or become deep or deeper
deepensDEEPEN, to make deep (extending far down from the surface)
deepens(of a weather system) Decrease in barometric pressure
DEEPENSGets stronger
DEEPENSIncreases in intensity, as a storm
DEEPENSStrengthens
DEEPENSDigs down further
DEEPENSBecomes less shallow
DEEPENSCompounds, as a mystery
DEEPENSGets lower
DEEPENSIntensifies
DEEPENSBecomes more intense
DEEPENSGets more profound
DEEPENSDigs farther down
DEEPENSBecomes more profound
DEEPENSExcavates further
DEEPENSFalls more
DEEPENSExtends farther down
DEEPENSGets more complicated
DEEPENSDredges.