Meaning of Theirs
Bangla: তাদের, তাহাদেরই, উহাদের, উহাদেরই
उनकी, उनके, उनका, इनका
Pronoun / সর্বনাম / सर्वनाम
a form of the possessive case of they used as a predicate adjective, after a noun or without a noun: Are you a friend of theirs? It is theirs.
(used after an indefinite singular antecedent in place of the definite masculine form his or the definite feminine form hers): I have my book; does everyone else have theirs?
that which belongs to them: Theirs is the largest house on the block.
the male person or animal being discussed or last mentioned; that male.
anyone (without reference to sex); that person: He who hesitates is lost.