Meaning of all-time

all-time

Pronunciation: (ôl'tīm"), [key]
— adj.
  1. never surpassed or greater: Production will reach an all-time high.
  2. regarded as such in its entire history: an all-time favorite song.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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