noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Abbreviation of priority zero The highest, most critical, most important, level of importance and priority. A hold everything, drop everything, and get on it, level. abbreviation, alt-of
2. 2
   Abbreviation of position zero The ultimate first position, in ordinal systems that begin with the zeroth place. abbreviation, alt-of

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.