Pronunciation: (u-sûrt'), [key]
1. to state with assurance, confidence, or force; state strongly or positively; affirm; aver: He asserted his innocence of the crime.
2. to maintain or defend (claims, rights, etc.).
3. to state as having existence; affirm; postulate: to assert a first cause as necessary.
4. assert oneself, to insist on one's rights, declare one's views forcefully, etc.: The candidate finally asserted himself about property taxes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.