teach

UK: /ˈtiːtʃ/ US: /titʃ/ ,(tēch)

Inflections of 'teach' (v): (⇒ conjugate)

teaches

v 3rd person singular

teaching

v pres p

taught

v past

taught

v past p

WordReference Random House Learner's Dictionary of American English © 2025

teach /titʃ/   v., taught/tɔt/  teach•ing. 

1. to impart knowledge of or skill in (some subject, etc.) to students;
   give instruction in (some topic): [~ + object]
   She teaches mathematics.
   [~ + that clause]
   The Koran teaches that hostages should not be mistreated.
2. to impart knowledge of or skill in some subject, etc., to (students);
   give instruction to: [~ + object]
   He teaches a large class of high school students.
   [~ + object + object]
   He teaches college students mathematics.
   [~ + object + to + verb]
   He taught his daughter (how) to drive.
   [~ + object + that clause]
   She taught me that most people can be trusted.
3. Education to impart knowledge, skill, or instruction, esp. as one's profession:
   [no object] teaching for over twenty years.

WordReference Random House Unabridged Dictionary of American English © 2025

teach  (tēch), v., taught, teach•ing, n. 
v.t. 

1. to impart knowledge of or skill in;
   give instruction in:
   She teaches mathematics.
2. to impart knowledge or skill to;
   give instruction to:
   He teaches a large class.

v.i. 
3. to impart knowledge or skill;
   give instruction.

n. 
4. Informal Terms teacher.
• bef. 900; Middle English techen, Old English tǣcan; akin to token
Synonyms
• 1. –3. coach.
• 2, 3. inform, enlighten, discipline, drill, school, indoctrinate.
  Teach, instruct, tutor, train, educate share the meaning of imparting information, understanding, or skill.
  Teach is the broadest and most general of these terms and can refer to almost any practice that causes others to develop skill or knowledge:
  to teach children to write; to teach marksmanship to soldiers; to teach tricks to a dog.
  Instruct almost always implies a systematic, structured method of teaching:
  to instruct paramedics in techniques of cardiopulmonary resuscitation.
  Tutor refers to the giving of usually private instruction or coaching in a particular subject or skill:
  to tutor a child in
  (a foreign language, algebra, history, or the like).
  Train lays stress on the development of desired behaviors through practice, discipline, or the use of rewards or punishments:
  to train a child to be polite; to train recruits in military skills; to train a dog to heel.
  Educate, with a root sense of "to lead forth from,'' refers to the imparting of a specific body of knowledge, esp. one that equips a person to practice a profession:
  to educate a person for a high-school diploma; to educate someone for the law.

Teach  (tēch), n. 

1. Biographical Edward ("Blackbeard''), died 1718, English pirate and privateer in the Americas.

Also, Thatch, Thach. 

Collins Concise English Dictionary © HarperCollins Publishers::

teach / tiːtʃ/ verb (teaches, teaching, taught)

1. (tr; may take a clause as object or an infinitive) often followed by how: to help to learn; tell or show (how)
2. to give instruction or lessons in (a subject) to (a person or animal)
3. (tr; may take a clause as object or an infinitive) to cause to learn or understand: experience taught him that he could not be a journalist

Etymology: Old English tǣcan; related to tācen token, Old Frisian tēken, Old Saxon tēkan, Old High German zeihhan, Old Norse teikn sign

Collins Concise English Dictionary © HarperCollins Publishers::

Teach / tiːtʃ/ noun

1. Edward, known as Blackbeard. died 1718, English pirate, active in the Caribbean and on the Atlantic coast of North America