teach

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To impart knowledge or skill to: teaches children.
2. v. To provide knowledge of; instruct in: teaches French.
3. v. To condition to a certain action or frame of mind: teaching youngsters to be self-reliant.
4. v. To cause to learn by example or experience: an accident that taught me a valuable lesson.
5. v. To advocate or preach: teaches racial and religious tolerance.
6. v. To carry on instruction on a regular basis in: taught high school for many years.
7. v. To give instruction, especially as an occupation.

Century Dictionary and Cyclopedia

1. To point out; direct; show.
2. To show how (to do something); hence, to train: as, to teach a dog to beg; to teach a boy to swim.
3. To tell; inform; instruct; explain; show.
4. To impart knowledge or practical skill to; give instruction to; guide in learning; educate; instruct.
5. To impart a knowledge of; give instruction in; give lessons in; instruct or train in understanding, using, managing, handling, etc.: as, to teach mathematics or Greek.
6. Synonyms To enlighten, school, tutor, indoctrinate, initiate.
7. To impart, inculcate, instil, preach. See instruction.
8. To give instruction; give lessons as a preceptor or tutor; impart knowledge or skill; instruct.
9. n. Same as tache.

Wiktionary

1. v. obsolete, transitive To show (someone) the way; to guide, conduct.
2. v. transitive To pass on knowledge.
3. v. intransitive To pass on knowledge, especially as one's profession; to act as a teacher.

GNU Webster's 1913

1. v. To impart the knowledge of; to give intelligence concerning; to impart, as knowledge before unknown, or rules for practice; to inculcate as true or important; to exhibit impressively
2. v. To direct, as an instructor; to manage, as a preceptor; to guide the studies of; to instruct; to inform; to conduct through a course of studies.
3. v. To accustom; to guide; to show; to admonish.
4. v. To give instruction; to follow the business, or to perform the duties, of a preceptor.

WordNet 3.0

1. v. impart skills or knowledge to
2. n. an English pirate who operated in the Caribbean and off the Atlantic coast of North America (died in 1718)
3. v. accustom gradually to some action or attitude