conceptual display canceled. business showcase to decide not to conduct or perform something planned or expected teacher

annulled rescinded nullified repealed invalidated voided abolished abrogated quashed revoked countermanded aborted negated nulled retracted vacated disannulled discharged dissolved overruled overthrew overthrown remitted broke brake broken overrode overridden recalled recanted withdrew withdrawn abated eliminated extinguished obviated redlined repudiated retired avoided belayed belaid