noun

intelligence

in-TEL-ih-juhns/ɪnˈtelɪdʒəns/

The ability to learn, understand, and reason.

Her intelligence helps her solve unfamiliar problems quickly and accurately.

An older woman solves a nonverbal pattern puzzle, selecting the missing tile by recognizing and combining the visible shape and color rules.

Etymology

intelLatinbetween

+ligLatinchoose, pick out

+enceLatinquality or state

“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

Real Science11:22

in humans intelligence is commonly defined as the ability to think abstractly understand communicate problem solve learn form memories and plan actions

The Insane Biology of: The Octopus

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.