| n. | 1. | A cottager; a cottier. |
| 1. | A piece of wood or metal, commonly wedge-shaped, used for fastening together parts of a machine or structure. It is driven into an opening through one or all of the parts. | |
| 2. | A toggle. | |
| v. t. | 1. | To fasten with a cotter. |
| Noun | 1. | cotter - a peasant farmer in the Scottish highlands Synonyms: cottar |
| 2. | cotter - a medieval English villein Synonyms: cottier | |
| 3. | cotter - fastener consisting of a wedge or pin inserted through a slot to hold two other pieces together Synonyms: cottar |