noun
intelligence
in-TEL-ih-juhns/ɪnˈtelɪdʒəns/
The ability to learn, understand, and reason.
Her intelligence helps her solve unfamiliar problems quickly and accurately.

Etymology
“Picking out between” gives the underlying idea of discernment: recognizing distinctions and understanding them. The noun names this power of understanding, the central connection to learning and applying knowledge.
In context
in humans intelligence is commonly defined as the ability to think abstractly understand communicate problem solve learn form memories and plan actions
More examples
- The puzzle tests intelligence, not knowledge of obscure facts.
- He shows great intelligence when he explains difficult ideas simply.
- Intelligence alone does not guarantee good decisions.
Forms
intelligent adjective — Able to learn, understand, and reason.
intelligently adverb — In a way that shows good reasoning.
Similar words
- intellect
- Intellect emphasizes reasoning and abstract thought rather than learning generally.
- understanding
- Understanding emphasizes grasping meaning rather than overall mental capacity.