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behavior

US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/bɪˈheɪvjɚ/ ,USA pronunciation: respelling(bi hāvyər)


WordReference Random House Learner's Dictionary of American English © 2026
be•hav•ior /bɪˈheɪvyɚ/USA pronunciation   n. [uncountable]
  1. the manner of behaving:Your behavior today in class was bad.
  2. Psychology
    • the activity of a human or animal that can be observed:argued that all behavior is a reaction to something outside an individual.
  3. the action of any material under given circumstances: Describe the behavior of this metal when heated.
Idioms
  1. be on one's best behavior, to act or behave as properly as one can:The children were on their best behavior.

be•hav•ior•al, adj.: the behavioral sciences.
be•hav•ior•al•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026
be•hav•ior  (bi hāvyər),USA pronunciation n. 
  1. manner of behaving or acting.
  2. Psychology
    • observable activity in a human or animal.
    • the aggregate of responses to internal and external stimuli.
    • a stereotyped, species-specific activity, as a courtship dance or startle reflex.
  3. SociologyOften, behaviors. a behavior pattern.
  4. the action or reaction of any material under given circumstances:the behavior of tin under heat.
Also,[esp. Brit.,] behaviour. 
  • Middle French (h)avoir
  • behave + -ior (on model of havior, variant of havor 1375–1425
be•havior•al, adj. 
be•havior•al•ly, adv. 
    1. demeanor, manners; bearing, carriage. Behavior, conduct, deportment, comportment refer to one's actions before or toward others, esp. on a particular occasion. Behavior refers to actions usually measured by commonly accepted standards:His behavior at the party was childish.Conduct refers to actions viewed collectively, esp. as measured by an ideal standard:Conduct is judged according to principles of ethics.Deportment is behavior related to a code or to an arbitrary standard:Deportment is guided by rules of etiquette. The teacher gave Susan a mark of B in deportment.Comportment is behavior as viewed from the standpoint of one's management of one's own actions:His comportment was marked by a quiet assurance.

WordReference Random House Learner's Dictionary of American English © 2026
be•hav•iour /bɪˈheɪvyɚ/USA pronunciation   n. Chiefly Brit.
  1. British Termsbehavior.

WordReference Random House Unabridged Dictionary of American English © 2026
be•hav•iour  (bi hāvyər),USA pronunciation n. [Chiefly Brit.]
  1. British Termsbehavior.
    See -or 1.

Collins Concise English Dictionary © HarperCollins Publishers::
behaviour, US behavior /bɪˈheɪvjə/ n
  1. manner of behaving or conducting oneself
  2. on one's best behaviourbehaving with careful good manners
  3. the aggregate of all the responses made by an organism in any situation
  4. the action, reaction, or functioning of a system, under normal or specified circumstances
Etymology: 15th Century: from behave; influenced in form by Middle English havior, from Old French havoir, from Latin habēre to havebeˈhavioural, US beˈhavioral adj
'behavior' also found in these entries (note: many are not synonyms or translations):
Collocations: is (not) normal behavior, normal behavior for a [twelve-year-old], study the behavior of the [groundhog], more...

🗣️Forum discussions with the word(s) "behavior" in the title:

...behavior, <when> I flick a pencil against a rubber band...
'Would be vs were' to want someone change their behavior / have different attitude towards someone else
[purchase/buying] behavior(s)
a bad behavior / bad behavior
a natural punishing consequence on that behavior
a specific instance of behavior
<a> very selfish and irresponsible behavior
a(n) behavior, act, or action
A/the phenomenon that explains the stock market behavior
actions, activities, behavior, acts
affect behavior
affects unethical behavior
An expression to describe a certain behavior.
and thereby influence behavior
And yet another weird behavior
angry behavior
antisocial behavior
appreciated our behavior
As thoughtful as this behavior appears
ask about changing the behavior of offenders
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at behavior
attending behavior
aunt-like behavior
autocratic behavior is taken as a perquisite of office
Baby's behavior
BE IT behavior involving money.... Structure?
behavior / a behavior [behaviour]
behavior / manner
Behavior + improve
more...

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