Probe definition

(1) An investigation conducted using a flexible surgical instrument to explore an injury or a body cavity

(2) An exploratory action or expedition

(3) A flexible slender surgical instrument used to explore wounds or body cavities

(4) An inquiry into unfamiliar or questionable activities

"There was a congressional probe into the scandal"

(5) Question or examine thoroughly and closely

(6) Examine physically with or as if with a probe

"Probe an anthill"