on guard

Definitions of on guard
  1. adjective
    vigilant
    “on guard against con artists”
    synonyms: on one's guard, on your guard, upon one's guard
    wary
    marked by keen caution and watchful prudence
Cite this entry
Style:
MLA
  • MLA
  • APA
  • Chicago

Copy citation
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘on guard'. Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors. Send us feedback
Word Family