Textual thesaurus for "spy"

(noun) undercover agent

(military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors

(verb) stag, sleuth, snoop

watch, observe, or inquire secretly

(verb) descry, spot, espy

catch sight of

(verb) sight

catch sight of; to perceive with the eyes

he caught sight of the king's men coming over the ridge