Meaning of TRIPLE in English

TRIPLE

I. trip ‧ le 1 /ˈtrɪp ə l/ BrE AmE adjective [only before noun] , predeterminer

1 . having three parts or involving three groups, people, events etc ⇨ double :

a triple murder investigation

a triple bill of horror movies

the triple world champion

a triple bypass heart operation

2 . three times more than a particular number ⇨ double :

The rail system has triple the average number of accidents.

II. triple 2 BrE AmE verb [intransitive and transitive]

to increase by three times as much, or to make something do this ⇨ double :

The company has tripled in size.

We expect to triple our profits next year.

III. triple 3 BrE AmE noun [countable]

1 . a hit of the ball in baseball that allows the ↑ batter to get to the third ↑ base

2 . three turns of your body in a sport such as ICE SKATING or ↑ gymnastics

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.