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This glossary covers a wide range of topics and includes terms that describe people, technology, concepts, and more. Some of the terms, marked by this icon , are widely considered to be

This term is generally agreed to be offensive toward or a person or group of people. We strongly recommend you do not use this term and instead use a term not usually thought to be offensive. While it is possible that some people will not be offended by this term, just as some people will be offended by other terms when no harm is intended, it is best to avoid. Remember that what is considered offensive can also change over time, by scenario, and by relationship. We provide this library of terms for informational purposes and we welcome feedback to help us get it right.


  • Direct Threat

    Direct Threat, as defined by the ADA means: a significant risk to the health or safety of others that cannot be...

  • Dyslexia/dyslexic

    According to Merriam-Webster, dyslexia is: a variable often familial learning disability involving difficulties in...

  • Down Syndrome

    A condition categorized by having an extra copy of chromosome 21, which can cause various intellectual and...