spied

(verb) catch sight of. Synonyms: descry, spot, espy, spy.

(verb) watch, observe, or inquire secretly. Synonyms: spy, stag, snoop, sleuth.

(verb) catch sight of; to perceive with the eyes. Synonyms: spy, sight. Example: "He caught sight of the king's men coming over the ridge."

(verb) secretly collect sensitive or classified information; engage in espionage. Synonyms: spy. Example: "Spy for the russians."