Teaching, n.
The act or business of instructing; also, that which is taught; instruction.
Syn. -- Education; instruction; breeding. See Education.
Shades of meaning
Fernald has no entry of its own for teaching; he lists it under doctrine, education.
Where he writes about it:
Doctrine primarily signifies that which is taught; principle, the fundamental basis on which the teaching rests. — from doctrine
Teaching is the more familiar and less formal word for instruction. — from education
Tuition is the technical term for teaching as the business of an instructor or as in the routine of a school; tuition is narrower than teaching, not, like the latter word, including training. — from education
We speak of the teaching, training, or discipline, but not of the education or tuition of a dog or a horse. — from education
Breeding and nurture include teaching and training, especially as directed by and dependent upon home life and personal association; breeding having reference largely to manners with such qualities as are deemed distinctively characteristic of high birth; nurture (literally nourishing) having more direct reference to moral qualities, not overlooking the physical and mental. — from education