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or

[awr, er] / ɔr, ər /
CONJUNCTION
a suggestion of choice
Synonyms
WEAK
as a choice as a substitute as an alternative conversely either in other words in preference to in turn on the other hand or but or else or only preferentially
Antonyms
WEAK
neither nor without choice
CONJUNCTION
a suggestion of correction
Synonyms
WEAK
contrary to in reverse instead instead of on the contrary oppositely or not or not exactly or rather rather reversing it
Antonyms
WEAK
neither nor without choice
CONJUNCTION
a suggestion of approximation
Synonyms
WEAK
about approximately practically roughly
Antonyms
WEAK
neither nor without choice
CONJUNCTION
either
Synonyms
STRONG
alternative substitute uncertainty
WEAK
else ere instead oppositely otherwise rather
Antonyms
WEAK
neither nor without choice

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.

If astrocytes help control whether fear memories are expressed or fade away, future treatments might target these cells alongside neurons to improve outcomes.

From Science Daily • Apr. 4, 2026

Bill Gates, on the other hand, has played no role in underwriting or supporting the NAR movement.

From Salon • Apr. 4, 2026

Jon spent years tracking the items down, many of which either no longer existed or were listed as collectibles, making them "very expensive".

From BBC • Apr. 4, 2026

Unlike traditional or Roth IRAs, SEPs do not allow catch-up contributions for people age 50 or older like your good self.

From MarketWatch • Apr. 4, 2026

I longed for a rabbit or robin to come sing me a song about true love.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.