adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Of an operating system, etc., only capable of serving one user at a time, not many users simultaneously. not-comparable

Antonyms

All antonyms

multi-usermultiuser

Etymology

From single + user.

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