lessen verb
ADV. considerably, greatly, significantly Eating a good diet significantly lessens the risk of heart disease. | gradually Time had gradually lessened the pain of her grief.
VERB + LESSEN begin to The noise began to lessen. | try to | tend to Too much background detail tends to lessen the impact of the central image. | help (to) Regular exercise can help to lessen the pain.
v.
The amount of homework decreased towards the end of the semester
The cabin pressure fell dramatically
her weight fall to under a hundred pounds
his voice fell to a whisper
He decreased his staff
The pain subsided