Behaviour - Noun: 1. behaviour - the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments". Definition of behaviour - the way in which one acts or conducts oneself, especially towards others. Behavior (American English) or behaviour (Commonwealth English) is the range of actions and mannerisms made by individuals, organisms, systems, or artificial entities in conjunction with themselves or their environment, which includes the other systems or organisms around as well as the (inanimate) physical environment..
1. Behavior, conduct, deportment, comportment refer to one's actions before or toward others, especially on a particular occasion. Behavior refers to actions usually measured by commonly accepted standards: His behavior at the party was childish.. Which answer pairs best with all of the following words: free, stretch, front, furnishings, page, movies.