Legal Definition
Supersede refers to the act of replacing or overriding a previous provision, rule, or agreement with a newer one. In legal contexts, it signifies that a subsequent document, statute, or contract clause takes precedence over an earlier one.
Plain-English Translation
Imagine you have two rules, and 'supersede' means one rule completely replaces the other. If Rule A is replaced by Rule B, then Rule B is the new, official rule to follow instead of Rule A.