scout

[1]	scout about/around , reconnoitre , investigate , study , research , examine , explore , spy , search/look (about/around) (for) , hunt (about/around) (for) , cast around/about (for) , (Colloq) check (about/around)
[2]	scout up/out , discover , find , locate , uncover , (Colloq) dig up
[3]	reconnoiter , reconnoitre

[1]	lookout , lookout man , sentinel , sentry , watch , spotter , picket
[2]	talent scout
[3]	pathfinder , guide