Adjective tapering off has 1 sense
  1. dwindling, tapering, tapering off - gradually decreasing until little remains
    Antonym: increasing (indirect, via decreasing)
,Verb taper off has 2 senses
  1. taper off, peter out, fizzle out, fizzle - end weakly; "The music just petered out--there was no proper ending"
    --1 is one way to discontinue
    Sample sentence:
    Something ----s
  2. taper off - become smaller or less active; "Business tapered off"
    --2 is one way to
    narrow, contract
    Sample sentence:
    Something ----s
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