manual

1. A handbook.
2. A booklet that instructs on the usage of a particular machine or product.

   The dishwasher isn't working; can you remember where we put the manual?

3. A drill in the use of weapons, etc.
4. An old office-book like the modern Roman Catholic ritual.
5. A keyboard for the hands on a harpsichord, organ, or other musical instrument.
6. A manual transmission; a gearbox, especially of a motorized vehicle, shifted by the operator.
7. (by synecdoche) A vehicle with a manual transmission.
8. A bicycle technique whereby the front wheel is held aloft by the rider, without the use of pedal force.
9. Manual measurement of the blood pressure, done with a manual sphygmomanometer.

   do a manual

1. Performed with the hands (of an activity).
2. Operated by means of the hands (of a machine, device etc.).
3. Performed by a human rather than a machine.

noun

Mechanical transmission which shifts gears by the action of the driver's hand on the gearstick or gear lever, rather than automatically; a manual gearbox.