What do a.m. and p.m. stand for?

abbr. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Related Abbreviations for abbr


  1. abbreviate
  2. abbreviation
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for abbr.

Few English speakers likely know this word

Word Value for abbr

Scrabble Words With Friends