tripling

Từ điển WordNet v3.1 - WordNet Dictionary

noun

increase by a factor of three
• Derivationally related forms:
triple
• Hypernyms:
multiplication

• Từ đồng nghĩa / Synonyms:
  treble, threefold, three-fold, ternary, triplex, trio, triad, triplet, three-base hit, three-bagger