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mutual

mutual /ˈmjuːtʃəwəl/ adjective
mutual
/ˈmjuːtʃəwəl/
adjective
Britannica Dictionary definition of MUTUAL
: shared between two or more people or groups
◊ If a feeling is mutual, then two people or groups feel the same way about each other.
always used before a noun : shared by two or more people or groups

— mutuality

/ˌmjuːtʃəˈwæləti/ noun, formal [noncount]