Teach Definition

tēch

taught, teaches, teaching

verb

taught, teaches, teaching

To give lessons or instruction; be a teacher, esp. in a school or college.

Webster's New World

To show or help (a person) to learn (how) to do something.

To teach a child (how) to swim.

Webster's New World

To impart knowledge or skill to.

Teaches children.

American Heritage

To give lessons to (a student, pupil, or class); guide the studies of; instruct.

Webster's New World

To provide (a person) with knowledge, insight, etc.

The accident that taught her to be careful.

Webster's New World

Synonyms:

Antonyms:

noun

A teacher.

American Heritage

Synonyms:

pronoun

(slang) Nickname for a teacher.

I'm not in trouble again, am I, Teach?

Wiktionary

Origin of Teach

From Middle English techen, from Old English tǣċan (“to show, declare, demonstrate; teach, instruct, train; assign, prescribe, direct; warn; persuade"), from Proto-Germanic *taikijanÄ… (“to show"), from Proto-Indo-European *deyǵe-, *deyḱe- (“to show, point out, declare, tell"). Cognate with Scots tech, teich (“to teach"), German zeigen (“to show, point out"), Gothic 𐌲𐌰𐍄𐌴𐌹𐌷𐌰𐌿 (gateihan, “to announce, declare, tell"), Latin dÄ«cō (“speak, say, tell"), Ancient Greek δείκνυμι (deíknumi, “show, point out, explain, teach"). More at token.

From Wiktionary
Middle English techen from Old English tǣcan deik- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition