Online Google Dictionary

arguably 中文解釋 wordnet sense Collocation Usage Collins Definition
Adverb
/ˈärgyo͞oəblē/,
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It may be argued (used to qualify the statement of an opinion or belief),
  1. It may be argued (used to qualify the statement of an opinion or belief)
    • - she is arguably the greatest woman tennis player of all time

  1. as can be shown by argument; "she is arguably the best"
  2. (arguable) capable of being supported by argument
  3. (arguable) open to argument or debate; "that is a moot question"
  4. (Arguable) In logic, an argument is a set of one or more meaningful declarative sentences (or "propositions") known as the premises along with another meaningful declarative sentence (or "proposition") known as the conclusion. ...
  5. As can be supported or proven by sound logical deduction, evidence, and precedent
  6. a vague, overused transitional phrase. Avoid it. See DM5 (Part Two).
  7. (adverb, with the addition of the derivational affixes -able and -ly, fused into one)
  8. A useful weasel word which can be used to preface any high-flown but un-provable assertion. As in “arguably one of the most attractive roads in Hampstead”, “arguably the best 2 bed penthouses in Sheffield”, or this wonderfully prolix example: “Arguably the finest example of an idyllic 16th ...