Verbs for Validity

preserve—; question—; respect—; stamp with—; sustain—; test—; view—; —signifies; analyze—; attack—; avow—; challenge—; defend—; destroy—; discuss—; dispute—; emphasize—; endanger—; exhibit—; honor —; imperil—; impugn—; interfere with—; jeopardize—; maintain—; —stands.