classroom

UK: /ˈklɑːsruːm/

US: /ˈklæsˌrum, -ˌrʊm/

US: (klas′ro̅o̅m′, -rŏŏm′, kläs′-)

WordReference Random House Learner's Dictionary of American English © 2026

class•room /ˈklæsˌrum, -ˌrʊm/   n. [countable]

1. Education a room, as in a school, in which classes are held.

WordReference Random House Unabridged Dictionary of American English © 2026

class•room  (klas′ro̅o̅m′, -rŏŏm′, kläs′-), n. 

1. Education a room, as in a school or college, in which classes are held.
2. any place where one learns or gains experience:
   The sea is the sailor's classroom.

• class + room 1865–70, American.

Collins Concise English Dictionary © HarperCollins Publishers::

classroom / ˈklɑːsˌruːm -ˌrʊm/ noun

1. a room in which classes are conducted, esp in a school or college