spy Synonyms

espy snoop stag sight spot descry sleuth secret agent view watch watcher cast around make out stool pigeon intelligence officer turncoat sleuthhound spial spook spotter squealer supranaturalistic traducer traitor sleeper lay eyes on snitcher bird dog foreign agent infiltrator plainclothesman secret service set eyes on shoofly sleuthing snooper surveil double agent catch sight of saboteur narc listen in wiretap gawp ninjutsu ninja counterspy undercover agent whistleblower sneak a look