Bookmark

Sign up or login to use the bookmarking feature.

Teacher Tips and Answers

Page 450

Abbreviations

An abbreviation is the shortened form of a word or phrase.

Common Abbreviations

Most abbreviations begin with a capital letter and end with a period, though some use no periods.

Tip The following abbreviations are always acceptable in both formal and informal writing:

Mr.  Mrs.  Ms.

Dr.  Jr.   MD

BC  ECE

a.m.  p.m.

A.M.  P.M.

In formal writing, do not abbreviate the names of states, countries, months, days, or units of measure. Also do not use signs or symbols (%, &) in place of words.

Acronyms

An acronym is a word formed from the first letter or letters of words in a phrase. Acronyms do not include periods.

SADD (Students Against Destructive Decisions)

© 2025 Thoughtful Learning. Copying is permitted.

k12.thoughtfullearning.com