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go by (third-person singular simple present goes by, present participle going by, simple past went by, past participle gone by)

  1. To pass or go past without much interaction
    I like to sit and watch the world go by.   The rest of the day went by quickly.
    Synonym: pass by
  2. To be called, to use as a name.
    His full name is Ernest Tinkleton, but he goes by Ernie.
  3. To follow; to assume as true for the purposes of making a decision, taking an action, etc.
    I'm only going by what my teacher said.
    a good rule to go by