When something supersedes, it takes the place of something else. The 5th edition of your history textbook supersedes the 4th edition.

Most words that include super have something good going on. Supersede is from the 16th-century Latin for "sit on top," and it often means to replace with something better. A version 10 of a computer game will supersede, version 9, making it more exciting. Unfortunately, a person might be replaced too, as in "the younger running back will supersede the veteran player as he gets older." To supersede is generally a good thing, but being superseded is not always that great for the replaced person.

Definitions of supersede
  1. verb
    take the place or move into the position of
    synonyms: replace, supercede, supervene upon, supplant
    substitute a person or thing for (another that is broken or inefficient or lost or no longer working or yielding what is expected)
    put back, replace
    put something back where it belongs
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    deputise, deputize, step in, substitute
    act as a substitute
    displace, preempt
    take the place of or have precedence over
    take the place of
    remove and replace
    help out by taking someone's place and temporarily assuming his responsibilities
    type of:
    come after, follow, succeed
    be the successor (of)
Word Family

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