BEHAVE definition: 1. to do or say things in a particular way: 2. to be polite and not make a situation difficult: . Learn more., BEHAVE meaning: 1. to do or say things in a particular way: 2. to be polite and not make a situation difficult: . Learn more., BEHAVE meaning: 1. to do or say things in a particular way: 2. to be polite and not make a situation difficult: . Learn more., science specialized to show particular behaviour in a particular situation or under particular conditions (在某种环境或条件下)做出特定行为, BEHAVIOUR definition: 1. the way that someone behaves: 2. the way that a person, an animal, a substance, etc. behaves in…. Learn more., I can't conceive how anyone could behave so cruelly. Small children often behave aggressively. I'm ashamed to be seen with you when you behave so badly! Let's stay calm and try to behave like responsible adults. I'd never behave like that in public..