From the Help topic "What do the underlines in my document mean?"

Red or green wavy underlines
When you automatically check spelling and grammar, Microsoft Word uses wavy
red underlines to indicate possible spelling errors and wavy green
underlines to indicate possible grammatical errors.

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Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"rmcompute" wrote in message
...
Jagged Red or Green lines are showing up on some documents under specific
words. Can you tell me what causes this and how to turn it off ?