Behaviour or Behavior | Meaning, Spelling & Examples
Behaviour and behavior are two different spellings of the noun referring to the way a person, animal, other organism, or machine acts or functions. It’s related to the verb “behave” meaning “conduct oneself” or “act.”
The spelling varies depending on whether you’re using
UK or US English:
, “behaviour” (with a “u”) is standard. UK English In
, “behavior” (with no “u”) is the correct spelling. US English
Examples: Behaviour and behavior in a sentenceThe school does not tolerate bullying or other forms of anti-social .
Ever since he broke the vase, Gus has been on his best
. behaviour/ behavior
Jordan’s research focuses on the relationship between
empathy and criminal . behaviour/ behavior As of yet, little is known about the of the virus. behaviour/ behavior
NoteMany words that end in “-our” in UK English end in “-or” in US English. Some other common examples include “ favour/favor,” “ colour/color,” “ honour/honor,” and “flavour/flavor.”
Behavioural vs. behavioral
The regional spelling distinction carries over to related forms of the words, including the
adjective “behavioural/behavioral” and the adverb “behaviourally/behaviorally.”
, “behavioural” and “behaviourally” are correct. UK English In
, “behavioral” and “behaviorally” are standard. US English
Examples: Other forms of “behaviour/behavior” in a sentenceKayla is studying to become a psychologist.
Research has found that human infants and ape infants are
similar. behaviourally/ behaviorally
Best behaviour or best behavior
Best behaviour/ best behavior is part of the expression “be on your best behaviour/behavior,” meaning “behave very well.” The possessive determiner used in the expression varies depending on the person being referred to. The spelling distinction also applies to this phrase.
Examples: “Best behaviour/best behavior” in a sentenceThe principal has asked students to be on their during the school inspection.
best behaviour/ best behavior
Anthony is on his
because he has his employee review next week. best behaviour/ best behavior Other interesting language articles
If you want to know more about
commonly confused words, definitions, common mistakes, and differences between US and UK spellings, make sure to check out some of our other language articles with explanations, examples, and quizzes.
TipAvoid embarrassing mistakes on autopilot by using our free spell checker!
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Behaviour or Behavior | Meaning, Spelling & Examples. Scribbr.
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