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

lower, reduce

(of a person, animal) to put oneself in a horizontal position

relax

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 cause something) to come to an end

stop, finish

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

diminish, lessen