noun

1. Alleviation; abatement; check.

2. An alloy.

verb

1. To make quiet or put at rest; to pacify or appease; to quell; to calm.

   “to allay popular excitement”

2. To alleviate; to abate; to mitigate.

   “to allay the severity of affliction or the bitterness of adversity”

3. To subside, abate, become peaceful.

Synonyms: abate, alleviate, appease, assuage, calm, compose, quiet, soothe