the ability to understand quickly and clearly

ability to understand and reason

the state of being discreet

caution, judgment

(the process of gaining) knowledge or skill by doing and seeing things

knowledge

great and exceptional intelligence or artistic ability

gift of high intellect

common sense and initiative

nerve, initiative

(an instance of) the power of understanding something

intuitiveness, awareness

the power to learn, understand and know; information, especially with reference to important events

ability to perceive, understand

Intelligence Quotient (a measure for comparing intelligence)

ability to perceive, understand

the state of judging or being judged; a decision of a judge or court

common sense

the process, act, by which we become aware (through seeing, hearing etc)

understanding, idea

thoroughness

wisdom

wisdom

wisdom

(the use of) skill and understanding shown by a person who handles people and situations successfully and without causing offence

finesse, thoughtfulness

the distance between the highest point of one wave and that of the next

intuitiveness, awareness

the quality of being wise

insight, common sense