1. a base hit at which the batter stops safely at third base
2. a quantity that is three times as great as another
Verb
1. increase threefold;
"Triple your income!"
2. hit a three-base hit
Adjective
1. having three units or components or elements;
"a ternary operation""a treble row of red beads""overcrowding made triple sessions necessary""triple time has three beats per measure""triplex windows"
2. three times as great or many;
"a claim for treble (or triple) damages""a threefold increase"