Japanese grammar

What does A、すなわち B mean? Japanese grammar N2

A、すなわち B means that is; to put it precisely (restating).

Quick facts
Level (estimated, JLPT framework)N2
StructureA、すなわち、B
RomajiA,sunawachi B
Meaningthat is; to put it precisely (restating)

Forming it

Conversion一時間、すなわち六十分
Definition日本の首都、すなわち東京

How to use it

Restates A more PRECISELY or using technical terminology. Academic written style.

  • 「すなわち」 = that is to say. B is the PRECISE way of referring to A: 「日本の首都、すなわち東京は人口が多い」.
  • Different from 「つまり」 (N3-101): 「つまり」 paraphrases for easier understanding and can be used in speech; 「すなわち」 restates as a precise definition/equivalence, and is only used in writing.
  • Common in math, law, and academic writing: 「これは A、すなわち原因である」.

Examples

  • Japan's capital, namely Tokyo, is home to many companies.

  • The pass rate is 50 percent, that is, one in two people.

Keep in mind

  • Used only in written language.
  • A and B must be PRECISELY equivalent.

Common mistakes

  • Wrong疲(つか)れた。すなわち、少(すこ)し休(やす)みたい。

    I'm tired. That is, I want to rest a bit.

    Correct疲(つか)れた。つまり、少(すこ)し休(やす)みたいということだ。

    「すなわち」 is used for precise equivalence, not for paraphrasing feelings.

  • Wrong(会話(かいわ)で)彼(かれ)は先生(せんせい)だ、すなわち教(おし)える人(ひと)だ。

    He's a teacher, that is, someone who teaches.

    Correct(会話(かいわ)で)彼(かれ)は先生(せんせい)だ、つまり教(おし)える人(ひと)だ。

    In conversation, use 「つまり」.

Exam tips

  • 「すなわち」 = that is to say (precise equivalence, written style); use 「つまり」 in speech.

Related patterns

All N2 grammar →