1Intelligence; mental capacity or cognitive ability — the faculty of thought, judgment, and learning, often discussed in technical or measurable terms (e.g., IQ).
子どもの知能発達を調べるための検査を受けた。
They underwent tests to examine the child's intellectual development.
AIの研究は機械の知能向上を目指している。
AI research aims to improve machine intelligence.
知能指数（IQ）は知能の一側面を示す指標だ。
IQ is an indicator that reflects one aspect of intelligence.