Doubled or tripled, say

GREW

Think of how a business or investment might change in size over time.

The clue plays on the word "grew" as both a past-tense verb and a homophone for "grew" (sounding like "grew" in "doubled or tripled"). Here, it hints at something increasing in size or amount—like numbers doubling or tripling—while also nodding to the idea of growth. The trick is recognizing that "grew" fits both the literal meaning of expansion and the phrasing of the clue as a past action. It’s a clever way to blend definition and wordplay without extra hints.