Synonyms for Spy

Synonyms starting with letter K

• keep under surveillance

  secretly follow, observe furtively, watch
• keep an eye on

  observe furtively
• keep under observation

  observe furtively
• keep a watch on

  observe furtively
• keeker
• know
• keep tabs on
• keep an eye out
• keep tabs
• keeper
• keep watch on

  watch
• keek
• keep eagle eye on
• keep eyes open
• ken
• kibitzer