- a pin, wedge, key, or the like, fitted or driven into an opening to secure something or hold parts together.
- cotter pin.
- to secure with a cotter.
- a person occupying a plot of land and cottage, paid for in services.
- cottager (def. 2).
- any part, such as a pin, wedge, key, etc, that is used to secure two other parts so that relative motion between them is prevented
- short for cotter pin
- to secure (two parts) with a cotter
- a villein in late Anglo-Saxon and early Norman times occupying a cottage and land in return for labour
- a peasant occupying a cottage and land in the Scottish Highlands under the same tenure as an Irish cottier
