Constellation
The word constellation comes from Latin: con-, meaning together and stella- meaning stars. Some examples of constellations are Ursa major, Orion, Taurus, Draco, Cancer etc.  Constellations were used to group stars.  Different places in the world may have different constellations, but today astronomy has a fixed set of 88 constellations.  This set is based on the Greek set and later some southern constellations were added, for example Antlia - the air pump.  Most constellations have names that come from Greek mythology, like Orion or Andromeda.