What is the word ab short for?
An ab is a stomach, or abdominal, muscle. Doing sit ups and crunches will help you tone your abs. Ab is shorthand for abdominal, which comes from the Latin abdomen, "belly," and it's a common name for what's formally known as the rectus abdominus muscle.
What does AB mean in writing?
CORRECTION SYMBOLS AND ABBREVIATIONS USED IN MARKING ESSAYS ab Abbreviation inappropriate or incorrect ack Acknowledgement missi.