to cause winds, storms, floods, pain etc to become less

lessen, grow or cause to grow less

(to cause something)become less in size, importance, effect etc

lower, reduce

to make (something), become, smaller in size, number, degree, price etc

make less; decrease

(to cause something) to become gradually narrower towards one end; a length of string with a covering of wax, burnt to give a light

decrease

to become less or weaker; (of the moon) to show a decreasing bright area after full moon

diminish, lessen