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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.


  • Head pointers

    Head pointers are assistive technology devices for those with limited or no movement in their hands that allow the...

  • Handicap, Handicapped

    A handicap is the effect of a disability and over time the term handicap has been linked with issues of equity....

  • Haptics

    In the context of interaction with devices or interfaces, this refers to the use of technology to provide tactile...

  • Heading hierarchy

    This refers to the relationship between the headings used on a page. Organizing them hierarchically, with h1 at...

  • Hard of Hearing (HoH)

    Description most commonly used for someone who does not hear well, with some degree of hearing loss.