triple

1. a. Consisting of three united; multiplied by three; threefold; as, a triple knot; a triple tie. Source: opted

2. a. Three times repeated; treble. See Treble. Source: opted

3. a. One of three; third. Source: opted

4. a. To make threefold, or thrice as much or as many; to treble; as, to triple the tax on coffee. Source: opted

5. adj. having three units or components or elements Source: wordnet

6. adj. three times as great or many Source: wordnet

7. n. a base hit at which the batter stops safely at third base Source: wordnet

8. n. a set of three similar things considered as a unit Source: wordnet

9. n. a quantity that is three times as great as another Source: wordnet

10. v. increase threefold Source: wordnet

11. v. hit a three-base hit Source: wordnet

12. 1. Consisting of three united; multiplied by three; threefold; as, a triple knot; a triple tie. By thy triple shape as thou art seen. Dryden. 2. Three times repeated; treble. See Treble. 3. One of three; third. [Obs.] Shak. Triple crown, the crown, or tiara, of the pope. See Tiara, 2. -- Triple-expansion steam engine, a compound steam engine in which the same steam performs work in three cylinders successively. -- Triple measure (Mus.), a measure of tree beats of which first only is accented. -- Triple ratio (Math.), a ratio which is equal to 3. -- Triple salt (Chem.), a salt containing three distinct basic atoms as radicals; thus, microcosmic salt is a triple salt. -- Triple star (Astron.), a system of three stars in close proximity. -- Triple time (Mus.), that time in which each measure is divided into three equal parts. -- Triple valve, in an automatic air brake for railroad cars, the valve under each car, by means of which the brake is controlled by a change of pressure in the air pipe leading from the locomotive. To make threefold, or thrice as much or as many; to treble; as, to triple the tax on coffee. Source: webster

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