SRO

or S.R.O.

single-room occupancy.

standing room only.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sro

It was SRO in the meeting room, packed to the gills with the entire ad-hoc, except for my new recruits.
Down and Out in the Magic Kingdom|Cory Doctorow

British Dictionary definitions for sro

SRO

abbreviation for

standing room only

British Statutory Rules and Orders

self-regulatory organization

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sro

SRO

1941, initialism for standing room only.