quadruple

Meanings

Adjective

• Being four times as long, as big or as many of something.

Verb

• To multiply by four.
• To increase by a factor of four.
• To provide four parallel running lines on a given stretch of railway.

Related

Opposite words

• quarter (divided into four; one of four equal parts)
• quarter (divide by four)

Origin

• From Middle English quadruple, from Latin quadruplus. Can be analyzed as quadri- + --uple.