立方

りっぽう

cube

JLPT N1

Character Breakdown

Meaning and Usage

"立方" (りっぽう) primarily refers to a cube or cubic shape, often used in mathematical or scientific contexts to describe three-dimensional objects with equal sides.

Common Contexts

It frequently appears in measurements of volume, such as "立方メートル" (cubic meter), which is a standard unit for volume. It can also relate to "立方数" (cubic numbers) in mathematics, indicating numbers raised to the third power.

Collocations and Patterns

  • 立方メートル: cubic meter, used in volume measurement.
  • 立方体: cube (geometric shape).
  • 立方数: cubic number, a number multiplied by itself twice.

Usage Notes

When using "立方," it is often combined with units or mathematical terms. It is a formal term mostly used in academic, scientific, or technical contexts rather than casual conversation. Learners should not confuse "立方" with "平方" (へいほう), which means square (two-dimensional).

Example Sentences

このりっぽうのはこはなんリットルのようりょうがありますか?

How many liters of capacity does this cubic box have?

りっぽうメートルはたいせきのたんいです。

Cubic meter is a unit of volume.

すうがくのじゅぎょうでりっぽうすうについてまなびました。

In math class, we learned about cubic numbers.