Synonyms for Intellection:

n.

concept (noun)
consideration, thought.
conception (noun)
meditation, musing, speculation.
intellection (noun)
cerebration, mentation, thinking, thought.
notion (noun)
imagination.
perception (noun)
attention, study.
reason (noun)
reasoning.
thought (noun)
absorption, analysis, appraisal, attention, brooding, calculation, cerebration, cogitation, concentration, consideration, contemplation, daydreaming, deliberation, engrossment, envisioning, evaluation, imagination, lucubration, meditation, musing, pondering, preoccupation, reasoning, reflection, speculation, study, thinking, thought, weighing, wistfulness, Debating, brain work.

Other synonyms:

Other relevant words:
mentation.

Usage examples for intellection

  1. As a matter of fact, we have ideas that are not copies of any one impression, but a binding together, colligation, or intellection of several impressions. – Logic, Inductive and Deductive by William Minto
  2. The former term they applied to those definitions which describe the objects of pure intellection such as triangles, and other geometrical figures; the latter, to those which define objects actually existing in external nature. – The Grammar of English Grammars by Goold Brown