Verbs for Vigilance

slacken—; —declines; —discovers; — insures; —lapses; —safeguards; —subsides; —wanes; admonish—; circumvent—; ease—; enforce—; escape—; exhort—; heighten—; intensify—; lighten—; maintain—; mitigate—; necessitate—; reduce—; relax—; sharpen—; —wearies.