Noun

1. A seat for the rider of a horse or camel
2. A pass or ridge that slopes gently between two peaks (is shaped like a saddle)
3. Cut of meat (especially mutton or lamb) consisting of part of the backbone and both loins
4. A piece of leather across the instep of a shoe
5. A seat for the rider of a bicycle
6. Posterior part of the back of a domestic fowl

Verb

1. Put a saddle on
2. Load or burden; encumber
3. Impose a task upon, assign a responsibility to