Instruction (noun)

1. An act or process of teaching or learning, especially in a school or other educational establishment.
2. A direction or guidance for the use or operation of something.
3. An order or command given by a court or other authority.

Origin:

Middle english: from old french, or from latin instructio(n-), from the verb instruere "teach, train" (see instruct).

Examples:

1. The instructions were clear and easy to follow.
2. He gave instructions to his employees.
3. The instructions for the assembly of the furniture were missing.
4. The instructions on the label are important to read.
5. She gave detailed instructions on how to make the cake.