Unit 5 Listening 2
discover (v.)
find something or someone unexpectedly or in the course of a search
invention (n.)
the action of making something
investigate (v.)
carry out research or study so as to discover facts or information
locate (v.)
discover the exact place or position of
mystery (n.)
something that is difficult or impossible to understand or explain
previous (adj.)
existing or occurring before in time or order
prove (v.)
demonstrate the truth or existence of something by evidence or argument
reputation (n.)
the beliefs or opinions that are generally held about someone or something
retire (v.)
leave one's job and cease to work
solve (v.)
find an answer to, explanation for a problem or mystery