A transliteration processing device according to one embodiment includes a character string acquisition unit that acquires a first alphabetic character string representing by alphabet a first word written in a first language having a specified script and a second alphabetic character string representing by alphabet a second word written in a second language having a different script from the first language, a determination unit that makes a determination whether a first consonant element included in the first alphabetic character string and a second consonant element included in the second alphabetic character string have a predetermined correspondence, and determines whether the first word and the second word have a transliteration relationship based on a result of the determination, and an output unit that outputs, as a transliteration pair, the first word and the second word determined to have a transliteration relationship by the determination unit.
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