The definition of before is something that happened before another thing, or something that was in front of or before another.(adverb)
Before is defined as a previous time.(preposition)
An example of before is when you are asked to do something prior to 7:00 PM.
See before in Webster's New World College Dictionary
Origin: ME biforen < OE beforan < be-, by + foran, fore
See before in American Heritage Dictionary 4
Origin: Middle English bifore
Origin: , from Old English beforan; see per1 in Indo-European roots.
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