Ownership of digital music players has more than tripled from 2005 to 2006.
Bird flu fatalities have almost tripled this year.
The number of bacteria in a certain culture triples every 2 hours.
WordNet 3.0 Sense Numbers: 1
Pitcher allows no hits through 9 innings, but triples every time up.
Justin Solomon singled twice and tripled for the Rockies.
WordNet 3.0 Sense Numbers: 2