(noun) someone who finds out information
researcher
(noun) a single person
individual
(noun) an idea of how something is, or how it should be done
concept
(noun) ways of communicating information or news to people
media
(noun) someone who offers to do something for free
volunteer
(noun) a typical or common amount of something
average
(noun) the usual way of doing something
norm
(noun) a scientific test
experiment
(phrase) to trust in
rely on
(verb) to experience something
encounter