Adjective improving has 1 sense
  1. improving, up - getting higher or more vigorous; "its an up market"; "an improving economy"
    Antonym: falling (indirect, via rising)
,Verb improve has 2 senses
  1. better, improve, amend, ameliorate, meliorate - to make better; "The editor improved the manuscript with his changes"
    --1 is one way to change, alter, modify
    Derived forms: noun improvement1, noun improver1, noun improver2
    Sample sentence:
    They improve their earnings this year
  2. better, improve, ameliorate, meliorate - get better; "The weather improved toward evening"
    --2 is one way to change state, turn
    Derived forms: noun improvement3, noun improvement2
    Sample sentence:
    Their earnings improve this year
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