quadruple /kwodˈrə-pl or (esp Scot) -rooˈ/

1. Fourfold
2. Having four parts, members or divisions

1. Four times as much
2. A coin worth four pistoles (historical)

1. To increase fourfold, multiply by four
2. To equal four times

To become four times as much

quadˈruplet (or /-rooˈ/) noun

1. Any combination of four things
2. One of four (children or animals) born at one birth (informal short form quad)
3. A group of four notes performed in the time of three (music)
4. A cycle for four riders

quadˈruply /-pli or -rooˈpli/ adverb

In a fourfold manner

Quadruple Alliance noun

A league formed in 1718 by Britain, France, Austria and Holland against Spain, or one formed in 1813 by Britain, Prussia, Austria and Russia against Napoleon

• no holds barred
• no-holds-barred
• no-hope
• no-hoper
• nohow
• nohowish
• noil
• noils
• 'noint
• noint
• noir-ish
• noirish
• noise
• noise abatement climb procedure
• noise control
• noised
• noiseful
• noiseless
• noiselessly
• noiselessness
• noiselessnesses
• noisemaker
• noisemakers
• noise pollution
• noises