Found this
Kinship terminologies vary in different societies from as few as twelve to more than fifty terms. English kinship terminology is in the middle, and contains the following principal terms:
mother, father, son, daughter, brother, sister
uncle, aunt, nephew, niece
cousin (differently elaborated in different English speaking cultures)
grandfather, grandmother, grandson, granddaughter
granduncle, grandaunt, grandniece, grandnephew (in many dialects)
plus
great-grandmother, great-great-grandmother etc.
and
great-grandfather, great-great-grandfather etc.
there are also the affinal terms:
wife, husband, brother-in-law, sister-in-law, mother-in-law and father-in-law as well as uncle and aunt.