market penetration: the extent to which a product is recognized and bought by customers in a particular market
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
eskimo: a member of a people inhabiting the Arctic (northern Canada or Greenland or Alaska or eastern Siberia); the Algonquians called them Eskimo (`eaters of raw flesh') but they call themselves the Inuit (`the people')