平方|へいほうheihou[0]heiban (flat)

JLPT N1approx.Common
Definitions
  1. nounsquare (e.g. metre)
    縦横じゅうおう8フィートの部屋へやの面積めんせきは64平方へいほうフィートである。↗
    The area of an 8-foot square room is 64 square feet.
Synonyms & antonyms
  • Synonym二乗にじょうNeutralNoun for the square or second power of a number, as in 「三の二乗」; it focuses on the operation, while 「平方」 also appears in area units like 「平方メートル」.
  • Synonym2乗NeutralA numeric way of writing 「二乗」 with the same meaning, common in horizontal text.

Use 「平方」 for both the second power of a number or expression and area units, as in 「平方メートル」 and 「平方根」. For the operation of squaring, 「二乗」 and 「2乗」 are also common; 「2乗」 is the numeric spelling, typical of horizontal text.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 二に乗じょう。自乗じじょう。
  2. 正方形せいほうけいの面積めんせき。
Kanji in this word
English equivalents

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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