noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An extended session of lectures, debates or discussions on a matter of public interest, usually social or political, as a form of protest.

   "Bomb threats and pickets disrupted an all-night "teach-in" tonight at Michigan State University."

2. 2
   an extended session (as on a college campus) for lectures and discussion on an important and usually controversial issue wordnet

Synonyms

All synonyms

beefbitchboycottchallengecomplaintcompunction

Example

More examples

"Bomb threats and pickets disrupted an all-night "teach-in" tonight at Michigan State University."

Etymology

From teach + -in, modeled after sit-in.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.