noun, noun or participle which takes 'suru', intransitive verb
accompanying; going together; traveling with
Used for going somewhere together with someone, often in a formal or business context. Can be used as a noun or with する as an intransitive verb.
明日の会議には、部長も同行する予定です。
The department head is also planning to accompany us to tomorrow's meeting.
彼は家族と同行して海外へ行った。
He went abroad, accompanied by his family.
noun
the same bank; the said bank
Formal written usage, typically in legal or financial documents, referring to a bank previously mentioned.
契約書には、同行が融資を実行する旨が記載されていた。
The contract stated that the said bank would execute the loan.