As the world population is rapidly aging, stakeholders must address the care of the elderly with great concern. Also, loss of dignity is often associated with aging due to dementia, mobility problems and diminished functional autonomy. However, dignity is a polysemic term that is deemed useless by some ethicists. To counter this claim, we propose four concepts to define it better and make use accurately of this notion. These are human dignity, dignity of identity, dignities of excellence and attributed dignities. (...) Finally, we explain the importance of solicitude and human dignity in the care of the elderly. This will ensure the respect, friendship and dignity of the elderly in providing geriatric ethical care. (shrink)