Translation guide
In Japanese, the ditto mark (〃) is used in vertical writing to repeat the item above. In horizontal writing, the same function is often served by 々 (for repeating a single kanji) or ゝ/ヽ (for repeating a single kana). The symbol 〃 is specifically called ノノ点 (nono-ten) or 同じく記号 (onajiku kigō).
ditto mark (symbol)
Referring to the symbol itself, used in vertical writing to repeat the previous line's content.
The most common name for the ditto mark (〃) in Japanese, literally 'no-no mark' because it looks like two katakana ノ.
In vertical writing, we use the ditto mark when repeating the same content.
A more descriptive term meaning 'same mark' or 'ditto symbol'.
A generic term for 'repetition mark', which can refer to 〃, 々, ゝ, etc. Less specific.
How to express 'ditto' or 'same as above' in written Japanese, especially in lists or tables.
In vertical writing, place 〃 directly below the item to be repeated. This is the standard ditto mark.
Tokyo 〃 (ditto)
In horizontal writing, especially in forms or tables, you can write 同上 (same as above) or 同前 (same as before) instead of a symbol.
Address: Tokyo Phone number: ditto
The adverb 'onajiku' means 'similarly' or 'likewise', and can be used in writing to mean 'ditto'.
How to verbally express agreement or 'same here' in casual or formal settings.
The standard polite way to say 'me too' or 'same here'.
A: I'm tired. B: Ditto.
Can be used in conversation, though slightly formal or written. Often used in meetings.
Very casual, masculine 'me too'. Use only among close friends.
A: I'm hungry. B: Ditto.
The ditto mark 〃 is distinct from 々 (kanji repetition) and ゝ/ヽ (kana repetition). Use 〃 only for repeating whole lines or entries in vertical text.
〃 is primarily for vertical writing. In horizontal writing, use 同上 or simply repeat the text. Some modern documents may use 〃 horizontally, but it's less common.
The ditto mark is used in the table.
Japanese has several repetition marks.
A社：100万円 B社：同じく
Company A: 1 million yen Company B: ditto
A: 賛成です。B: 同じく。
A: I agree. B: Ditto.