instruction

(noun) a message describing how something is to be done. Synonyms: direction. Example: "He gave directions faster than she could follow them."

(noun) the activities of educating or instructing; activities that impart knowledge or skill. Synonyms: education, teaching, pedagogy, didactics, educational activity. Examples: "He received no formal education." "Our instruction was carefully programmed." "Good classroom teaching is seldom rewarded."

(noun) the profession of a teacher. Synonyms: teaching, pedagogy. Examples: "He prepared for teaching while still in college." "Pedagogy is recognized as an important profession."

(noun) (computer science) a line of code written as part of a computer program. Synonyms: command, statement, program line.