adverb, noun which may take the genitive case particle 'no'
as stated; verbatim; literally
Used when something is exactly as expressed, without interpretation or exaggeration. Often appears with verbs like 言う, 受け取る, 実行する.
彼の言葉通り、会議は3時に始まった。
Just as he said, the meeting started at 3 o'clock.
説明書の言葉通りに組み立ててください。
Please assemble it exactly as the instructions say.
文字通り means 'literally' in the sense of word-for-word or exact literal meaning, while 言葉通り focuses on following what was said or written.
Compound of 言葉 (kotoba, 'word(s)') + 通り (tōri, 'as, in accordance with'). The reading どおり is a rendaku form of とおり.