An ability to understand the meaning or importance of something (or the knowledge acquired as a result).

Roget 490: knowledge; cognizance, cognition, cognoscence^†; acquaintance, experience, ken [Scot.], privity^†, insight, familiarity; comprehension, apprehension; recognition; appreciation etc. (judgment) 480; intuition; conscience, consciousness; perception, precognition; acroamatics^†.    light, enlightenment; glimpse, inkling; glimmer, glimmering; dawn; scent, suspicion; impression etc. (idea) 453; discovery etc. 480.1. system of knowledge, body of knowledge; science, philosophy, pansophy^†; acroama^†; theory, aetiology^†, etiology; circle of the sciences; pandect^†, doctrine, body of doctrine; cyclopedia, encyclopedia; school etc. (system of opinions) 484.    tree of knowledge; republic of letters etc. (language) 560.    erudition, learning, lore, scholarship, reading, letters; literature; book madness; book learning, bookishness; bibliomania^†, bibliolatry^†; information, general information; store of knowledge &c.; education etc. (teaching) 537; culture, menticulture^†, attainments; acquirements, acquisitions; accomplishments; proficiency; practical knowledge etc. (skill) 698; liberal education; dilettantism; rudiments etc. (beginning) 66.    deep knowledge, profound knowledge, solid knowledge, accurate knowledge, acroatic knowledge^†, acroamatic knowledge^†, vast knowledge, extensive knowledge, encyclopedic knowledge, encyclopedic learning; omniscience, pantology^†.    march of intellect; progress of science, advance of science, advance of learning; schoolmaster abroad.    [person who knows much] scholar etc. 492.    ... show more

Roget 498: intelligence, capacity, comprehension, understanding; cuteness, sabe [U.S.], savvy [U.S.]; intellect etc. 450; nous [Fr.], parts, sagacity, mother wit, wit, esprit, gumption, quick parts, grasp of intellect; acuteness etc. adj.; acumen, subtlety, penetration, perspicacy^†, perspicacity; discernment, due sense of, good judgment; discrimination etc. 465; cunning etc. 702; refinement etc. (taste) 850.    head, brains, headpiece, upper story, long head; eagle eye, eagle-glance; eye of a lynx, eye of a hawk.    wisdom, sapience, sense; good sense, common sense, horse sense [U.S.], plain sense; rationality, reason; reasonableness etc. adj.; judgment; solidity, depth, profundity, caliber; enlarged views; reach of thought, compass of thought; enlargement of mind.    genius, inspiration, geist [G.], fire of genius, heaven-born genius, soul; talent etc. (aptitude) 698.    [Wisdom in action] prudence etc. 864; vigilance etc. 459; tact etc. 698; foresight etc. 510; sobriety, self-possession, aplomb, ballast.    a bright thought, not a bad idea.    Solomon-like wisdom.    ... show more

The relation of comprising something.

synonym: inclusion.

Roget 54: composition, constitution, crasis^†; combination etc. 48; inclusion, admission, comprehension, reception; embodiment; formation.   

Roget 76: inclusion, admission, comprehension, reception.    composition etc. (inclusion in a compound) 54.