Probe
/pɹəʊb/
noun
Any of various medical instruments used to explore wounds, organs, etc.
Something which penetrates something else, as though to explore; something which obtains information.
An act of probing; a prod, a poke.
Synonyms: yosu-miru
verb
To explore, investigate, or question
“If you probe further, you may discover different reasons.”
To insert a probe into.