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From Middle English heightenen, hyghtenen, equivalent to height +‎ -en (verbal suffix).



heighten (third-person singular simple present heightens, present participle heightening, simple past and past participle heightened)

  1. To make high; to raise higher; to elevate.
  2. To advance, increase, augment, make larger, more intense, stronger etc.
    to heighten beauty
    to heighten a flavor or a tint
    to heighten his awareness
    “That’s heightened by the impact of climate change,” she added.
    • 2006 December 6, Ashley Seager, “Employment rise gives chancellor a boost”, in The Guardian[1]:
      If Mr Brown chooses, he could raise his estimate of the economy's "trend" rate of growth in the coming years and so heighten his hopes of tax revenues.