Pronunciation: (un"dur-stan'ding),[key] —n. 1. mental process of a person who comprehends; comprehension; personal interpretation: My understanding of the word does not agree with yours. 2. intellectual faculties; intelligence; mind: a quick understanding. 3. superior power of discernment; enlightened intelligence: With her keen understanding she should have become a leader. 4. knowledge of or familiarity with a particular thing; skill in dealing with or handling something: an understanding of accounting practice. 5. a state of cooperative or mutually tolerant relations between people: To him, understanding and goodwill were the supreme virtues. 6. a mutual agreement, esp. of a private, unannounced, or tacit kind: They had an understanding about who would do the dishes. 7. an agreement regulating joint activity or settling differences, often informal or preliminary in character: After hours of negotiation, no understanding on a new contract was reached. 8. Philos. a. the power of abstract thought; logical power.
b. Kantianism.the mental faculty resolving the sensory manifold into the transcendental unity of apperception.
—adj. characterized by understanding; prompted by, based on, or demonstrating comprehension, intelligence, discernment, empathy, or the like: an understanding attitude.