S: (n) education, instruction, teaching, pedagogy, didactics, educational activity (the activities of educating or instructing; activities that impart knowledge or skill) "he received no formal education"; "our instruction was carefully programmed"; "good classroom teaching is seldom rewarded"
S: (n) teaching, instruction, pedagogy (the profession of a teacher) "he prepared for teaching while still in college"; "pedagogy is recognized as an important profession"