Crossword Clue:

person having the same name as another

AnswerCrossword Clue
ISOTOPEElement having same atomic number as another.
ALLONYMThe name of another person assumed by the author of a work.
HOMOGRAPHWord spelled the same as another but with a different meaning
PARONYMLinguistic term for a word that's almost the same as another word, like "affect" and "effect"
TYINGHaving the same score as
PARITYHaving the same value, as currency
ISOTONICHaving the same concentration of salt as mammalian blood