mobility

Etymology

From Middle French mobilité, and its source, Latin mōbilitās (“mobility”).

noun

1. The ability to move; capacity for movement.
   I find the enduring existence of high heels both a frustrating mystery and a testament to the triumph of women’s neuroses over their mobility. 15 June 2015, Hadley Freeman, The Guardian
   In the late 19th and early 20th century, the festive season was also a period of great mobility before, during and after Christmas Day. But the railways kept working. December 14 2022, David Turner, “The Edwardian Christmas getaway...”, in RAIL, number 972, page 32
2. (now chiefly literary) A tendency to sudden change; mutability, changeableness.
3. (military) The ability of a military unit to move or be transported to a new position.
4. (chiefly physics) The degree to which particles of a liquid or gas are in movement.
5. (chiefly sociology) People's ability to move between different social levels or professional occupations.
   The difficulty of rising up the economic ladder is reflected in the decline in mobility in the United States. […] The frustration over the lack of mobility is particularly acute for those without college degrees. 2020-07-28, Thomas B. Edsall, “Trump Is Trying to Bend Reality to His Will”, in New York Times