Assertion1. (n.) The act of asserting, or that which is asserted; positive declaration or averment; affirmation; statement asserted; position advanced.
2. (n.) Maintenance; vindication; as, the assertion of one's rights or prerogatives.
Thesaurus Entries
Parthian shot, a priori principle, address, admission, affidavit, affirmance, affirmation, allegation, announcement, annunciation, answer, apostrophe, apriorism, asseveration, assumed position, assumption, attest, attestation, averment, avouchment, avowal, axiom, basis, categorical proposition, comment, compurgation, conclusion, confirmation, contention, crack, creed, data, declaration, deposition, dictum, disclosure, enunciation, exclamation, expression, first principles, foundation, greeting, ground, hypothesis, hypothesis ad hoc, insistence, instrument in proof, interjection, ipse dixit, legal evidence, lemma, major premise, manifesto, mention, minor premise, note, observation, philosopheme, philosophical proposition, phrase, position, position paper, positive declaration, postulate, postulation, postulatum, predicate, predication, premise, presupposition, proclamation, profession, pronouncement, proposition, propositional function, protest, protestation, question, reflection, remark, representation, say, say-so, saying, sentence, stance, stand, statement, subjoinder, sumption, supposal, sworn evidence, sworn statement, sworn testimony, testimonial, testimonium, testimony, theorem, thesis, thought, truth table, truth-function, truth-value, utterance, vouch, witness, word