(しんせき)

しんせき
noun
relative, relation
1. relative, relation, kin
A person connected by blood or marriage to one's family.
Our relatives gathered for New Year's.
A distant relative suddenly came to visit.
She is a relative of mine.
あたる means 'to be equivalent to' or 'to be related as'

親戚(しんせき) includes relatives by blood and marriage.

COMMON EXPRESSIONS:

COMPARISON: