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Synonyms

allay

American  
[uh-ley] / əˈleɪ /

verb (used with object)

allayed, allaying
  1. to put (fear, doubt, suspicion, anger, etc.) to rest; calm; quiet.

    Synonyms:
    assuage, soften
    Antonyms:
    excite
  2. to lessen or relieve; mitigate; alleviate.

    to allay pain.

    Synonyms:
    ease, temper, mollify, lighten

allay British  
/ əˈleɪ /

verb

  1. to relieve (pain, grief, etc) or be relieved

  2. (tr) to reduce (fear, anger, etc)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

Allay, moderate, soothe mean to reduce excitement or emotion. To allay is to lay to rest or lull to a sense of security, possibly by making the emotion seem unjustified: to allay suspicion, anxiety, fears. To moderate is to tone down any excess and thus to restore calm: to moderate the expression of one's grief. To soothe is to exert a pacifying or tranquilizing influence: to soothe a terrified child.

Other Word Forms

Etymology

Origin of allay

before 1000; Middle English aleyen, Old English ālecgan to put down, allay ( ā- a- 3 + lecgan to lay 1 ); spelling -ll- shows influence of the now obsolete allege (< Anglo-French, Old French aleg ( i ) er; see allege) to alleviate, allay

Explanation

The verb allay is used when you want to make something better or eliminate fears and concerns. When you allay something, you are calming it or reducing difficulties. It is used commonly in the context of to allay concerns and to comfort and some of its many synonyms are alleviate, decrease, mitigate, assuage and mollify. Allay comes from the Old English word alecgan, which means "to put down," as in literally "to lighten." So, if you can allay someone's fears, you are lightening their mood!

Keep Reading on Vocabulary.com

Vocabulary lists containing allay

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Spanish officials have sought to allay concerns about the ship's arrival, laying out in detail the containment precautions being taken.

From BBC • May 9, 2026

The data announced this week “should allay fears that Foundayo faces unique liver safety risks versus competitors like oral Wegovy,” Huynh wrote in a note on Thursday.

From MarketWatch • Apr. 17, 2026

Ultimately, the FDA decided not enough data existed to allay the known safety concerns.

From Salon • Apr. 4, 2026

But such arguments do little to allay the fears of prospective buyers who fear they could find they've handed over hundreds for a lemon.

From Barron's • Mar. 3, 2026

As rumors circulated about the dangers of the new product, ethyl’s ebullient inventor, Thomas Midgley, decided to hold a demonstration for reporters to allay their concerns.

From "A Short History of Nearly Everything" by Bill Bryson