Synonyms of reconnaissance

1 Syllable
hunt, search, look, scan, raid
2 Syllables
look-see, weighin, probe, survey, review, recon, raided, raiding, shootup, foray
3 Syllables
scrutiny, maneuvers, tipover
4 Syllables
surveillance, explorations, reconnoiter, espionage, exploration
5 Syllables
examinations, examination, investigation