(uncountable) The act of instructing, teaching, or furnishing with information or knowledge. / (countable) An instance of the information or knowledge so furnished. / (countable) An order or command.

plural of instruction

Intended for purposes of instruction, for teaching.

A book, film, etc. intended to instruct.

plural of instructional

Conveying knowledge, information or instruction.

(linguistics) A case in the Finnish language. It expresses the means or the instrument used to perform an action.

(transitive) To teach by giving instructions. / (transitive) To tell (someone) what they must or should do.

(obsolete) Instruction.

(obsolete) Arranged; furnished; provided. / (obsolete) Instructed; taught; enlightened.