quadruple

四倍になる

大きさや量が、もとの四倍に増える。

やさしい英語で： To become four times as large or as much.

• Sales quadrupled last year.
• The population has quadrupled since 1950.
• Your investment could quadruple in value.

使い方： quadruple in size/value (The town quadrupled in size within twenty years.)

類義語： increase fourfold

よく使う表現： quadruple in value, quadruple in size, almost quadruple

四倍にする

量や数を、もとの四倍に増やす。

やさしい英語で： To make an amount or number four times as large.

• They quadrupled the budget.
• We must quadruple production to meet demand.
• The company has quadrupled its workforce since opening.

類義語： multiply by four

反対語： quarter

よく使う表現： quadruple the budget, quadruple production, quadruple the workforce

四倍の、四重の

大きさや数が、別のものの四倍である。

やさしい英語で： Four times as large or as many as something else.

• We need quadruple the amount.
• They paid quadruple the original price.
• The skater attempted a quadruple jump.

使い方： quadruple the ... (The new tank holds quadruple the volume of the old one.)

類義語： fourfold

よく使う表現： quadruple the amount, quadruple the size, a quadruple jump