A seeking of knowledge, data, or the truth about something
(Noun)
Question or examine thoroughly and closely
(Verb)
To go into or through for the purpose of making discoveries or acquiring information
(Verb)
Something, as a remark, used to determine the attitude of another
(Noun)
Synonyms:
  1. feelers
The act or an instance of exploring or investigating
(Noun)
An investigation into unfamiliar matters or questionable activities; a penetrating inquiry:
(Noun)
Synonyms:
  1. inquiries