I. verb
Synonyms: scrutinize 1, canvass, check over, check up, con, examine, inspect, study, survey, view
Idioms: go over with a fine-tooth comb
II. adjective
Synonyms: experienced , old, old-time, practical, practiced, seasoned, skilled, versed, veteran
III. noun
Synonyms: veteran , longtimer, old hand, old-timer