-er]
| 1. | a rope, chain, or the like, by which an animal is fastened to a fixed object so as to limit its range of movement. |
| 2. | the utmost length to which one can go in action; the utmost extent or limit of ability or resources. |
| 3. | to fasten or confine with or as if with a tether. |
| 4. | at the end of one's tether, at the end of one's resources, patience, or strength. |
