to make (pain, suffering) less or easier to bear

relieve; lessen

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

lower, reduce

to make (anger, punishment etc) less serious or severe

check, diminish, lighten

to calm (a person, a person's anger, excitement etc)

make peaceful; appease

to make (a person, a person's feelings or emotions) quiet or calm; to make (pains, aches) less sharp or severe

calm, ease