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3)
#515
Common
Meaning
    1. perhaps; possibly; maybe; by any chance; if I'm not mistaken
      Ah, could it be you're embarrassed to be called by your first name?
    2. if; in case; in the event that
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5)
#2,378
Common
Meaning
    1. if; in case; supposing
      emphatic form of もし; with a conditional sentence; oft. for unfavorable outcomes
      See also: 若し (もし)
      Please let us know if we can be of help in other ways.
    2. worst (case); unexpected (occurence); unforeseen
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