Meaning
The kanji 某 (ぼう) signifies “a certain,” “some,” “so-and-so,” or “such-and-such.” It's used to refer to a person, place, time, or thing when its specific identity is unknown, irrelevant, or intentionally withheld. In modern Japanese, its usage is quite formal, typically appearing in official documents, news reports, or literary contexts where anonymity or generality is desired.
Its origin is debated by scholars, but it is generally considered an ideogram (会意文字 - kaii moji), combining two components: 木 (き - tree) and 甘 (あま - sweet). One common interpretation suggests that it originally depicted “a certain kind of tree” or “a particular sweet fruit on a tree,” thereby conveying the idea of something unspecified or undetermined. Over time, its meaning broadened to encompass any unnamed or unspecified person, place, or thing.
Visually, one might interpret the connection as pointing to a specific tree (木) and then describing its quality (甘, perhaps referring to a type of fruit), yet without giving a definitive name. This maintains its 'certain but unspecified' nature. While the direct visual link may not be immediately obvious to a beginner, understanding how its components contribute to the abstract concept of 'a particular but unnamed entity' is crucial.
The kanji 某 has 9 strokes and is taught in Grade 8 of the Japanese school system, making it a Joyo (common use) kanji. Despite this, its N1 JLPT classification indicates its advanced usage and often formal context.
Readings
On'yomi (音読み) — Chinese-derived readings
The primary On'yomi for 某 is ボウ (BOU). This reading is by far the most common in modern Japanese, especially when forming compound words that mean 'a certain' or 'unspecified'. It is prevalent in formal and written language.
- 某所 (bōsho) — a certain place, an unspecified location
This term is used when the location is known but not disclosed, or when its specific identity is not relevant to the context. For example, a police report might state an incident occurred at 某所 to protect privacy.
- 某氏 (bōshi) — a certain person, Mr./Ms. So-and-so
Used to refer to an individual without naming them, often to protect their privacy or because their identity is not relevant. For instance, in a formal discussion, one might say 某氏が提唱した理論 (the theory proposed by a certain person).
- 某日 (bōjitsu) — a certain day, an unspecified date
Often seen in formal documents or historical accounts when the exact date is either unknown, not recorded, or intentionally kept private. An example would be a historical text mentioning 某日に条約が締結された (a treaty was concluded on a certain day).
Kun'yomi (訓読み) — Native Japanese readings
The Kun'yomi readings for 某 are generally archaic or literary and rarely encountered in modern spoken or written Japanese. They often functioned as pronouns or indefinite quantifiers in older forms of the language.
- なにがし (nanigashi) — a certain amount; so-and-so (a person)
This reading is mostly obsolete but can be found in classical literature. It suggests an unspecified quantity or an unnamed person. For example, it might appear in old texts as 銭なにがし (a certain amount of money) or 某なにがし (Mr. So-and-so).
- それがし (soregashi) — I (archaic, typically male humble pronoun); so-and-so (a person)
Another archaic reading, それがし was used as a humble first-person pronoun, similar to 吾 (ware) or 私 (watakushi), often carrying a slightly more formal or self-deprecating nuance. Like なにがし, it could also refer to an unspecified person. You might encounter it in historical dramas or classical prose where a character refers to themselves as それがし.
Common Words & Compounds
The kanji 某 almost exclusively appears in compounds, typically with its On'yomi ボウ (BOU). These compounds are often formal and used to indicate unspecified entities.
Unspecified Places/Times:
某所 (bōsho) — a certain place, an unspecified location
某日 (bōjitsu) — a certain day, an unspecified date
某月 (bōgetsu) — a certain month, an unspecified month
某年 (bōnen) — a certain year, an unspecified year
某時 (bōji) — a certain time, an unspecified time
Unspecified People/Organizations:
某氏 (bōshi) — a certain person, Mr./Ms. So-and-so
某国 (bōkoku) — a certain country, an unspecified nation
某企業 (bōkigyō) — a certain company, an unspecified enterprise
某大学 (bōdaigaku) — a certain university, an unspecified institution
Unspecified Events/Reasons:
某事件 (bōjiken) — a certain incident, an unspecified case
某理由 (bōriyū) — a certain reason, an unspecified cause
某項目 (bōkōmoku) — a certain item/entry, an unspecified category
These compounds are particularly useful in news reports, academic papers, or legal contexts where precision is maintained while withholding specific identities or details.
Example Sentences
事件は某所で発生したと報告されている。
Jiken wa bōsho de hassei shita to hōkoku sareteiru.
It is reported that the incident occurred at a certain place.
某日、彼は重要な会議に出席した。
Bōjitsu, kare wa jūyō na kaigi ni shusseki shita.
On a certain day, he attended an important meeting.
弊社は某企業と提携し、新製品を開発する予定です。
Heisha wa bōkigyō to teikei shi, shinseihin o kaihatsu suru yotei desu.
Our company plans to partner with a certain company to develop new products.
彼は某大学の教授だと聞いている。
Kare wa bōdaigaku no kyōju da to kiiteiru.
I hear he is a professor at a certain university.
論文の中では、某氏の研究が引用されている。
Ronbun no naka de wa, bōshi no kenkyū ga in'yō sareteiru.
In the thesis, the research of a certain person is cited.
政府は某国との外交関係を強化している。
Seifu wa bōkoku to no gaikō kankei o kyōka shiteiru.
The government is strengthening diplomatic ties with a certain country.
報告書には、某理由により詳細が省略された。
Hōkokusho ni wa, bōriyū ni yori shōsai ga shōryaku sareta.
In the report, details were omitted for a certain reason.
小説の舞台は、東欧の某都市だとされている。
Shōsetsu no butai wa, Tōō no bōtoshi da to sareteiru.
The setting of the novel is said to be a certain city in Eastern Europe.
捜査当局は、某事件について新たな情報を得た。
Sōsa tōkyoku wa, bōjiken ni tsuite aratana jōhō o eta.
Investigation authorities obtained new information regarding a certain incident.
Memory Tip
To remember 某, break it down into its components: 木 (tree) and 甘 (sweet). Imagine walking through a forest and discovering a beautiful, unique tree (木) with a delicious, sweet fruit (甘) on it. You know there is a certain sweet tree, but you don't know its exact name or species. It's simply 'a certain one.' This image of 'a certain sweet tree' helps connect the meaning of 'unspecified' or 'a certain' to the visual components of the kanji. Think of it as vaguely pointing to 'that sweet tree over there' without naming it specifically.