Emily Dickinson Lexicon

TEACH, v.t. [pret. and pp. taught. Sax. tæcan, to teach, and to take; L. doceo; Ir. deachtaim, to teach, to dictate; Gaelic, deachdam, which seems to be the L. dico, dicto, and both these and the Gr. δεικω, to show, may be of one family; all implying sending, passing, communicating, or rather leading, drawing.]

1. To instruct; to inform; to communicate to another the knowledge of that of which he was before ignorant. He will teach us of his ways, and we will walk in his paths. Is. ii. Lord, teach us to pray, as John also taught his disciples. Luke ix.
2. To deliver any doctrine, art, principles or words for instruction. One sect of ancient philosophers taught the doctrines of stoicism, another those of epicureanism. In vain they worship me, teaching for doctrines the commandments of men. Matth. xv.
3. To tell; to give intelligence. Tusser.
4. To instruct, or to practice the business of an instructor; to use or follow the employment of a preceptor; as, a man teaches school for a livelihood.
5. To show; to exhibit so as to impress on the mind. If some men teach wicked things, it must be that others may practice them. South.
6. To accustom; to make familiar. They have taught their tongue to speak lies. Jer. ix.
7. To inform or admonish; to give previous notice to. For he taught his disciples, and said – Mark ix.
8. To suggest to the mind. For the Holy Spirit shall teach you in that same hour what ye ought to say. Luke xii.
9. To signify or give notice. He teacheth with his fingers. Prov. vi.
10. To counsel and direct. Hab. ii.