at home
 at home
  1 : in your own country and not a foreign country
   We face serious threats both at home and abroad.
  2 sports : in a team's own stadium, park, etc. : in the place where a team is based
   The team's next six games are at home. [=in its own stadium]
   The team has done much better at home [=in its home games] than on the road.
   — see also home 1 (above), 1
  3 : relaxed and comfortable
   She feels at home on the stage.
   They made me feel (right) at home my first day at the new job.
   Come on in and make yourself at home. [=do what you need to do to feel relaxed and comfortable]
   The professor is equally at home in politics and history. [=knows a lot about both politics and history]
   I've never really felt/been completely at home with [=comfortable and confident about using] all these new-fangled machines.
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 Main Entry: home