Definition of “parliament” - Learner’s Dictionary

parliament

noun [ C, U ] us uk /ˈpɑːləmənt/
The bill was narrowly defeated in parliament.He won a seat in parliament at the last election.The book gives a colourless account of his time in parliament.Parliament is divided over the issue.The new parliament building was opened last year.

B2 in some countries, a group of people who make the laws for the country:

the Russian parliament
parliamentary adjective [ always before noun ] us uk /ˌpɑːləˈmentəri/

relating to a parliament:

a parliamentary candidate/election
→ See also Houses of Parliament , Member of Parliament

(Definition of “parliament” from the Cambridge Learner's Dictionary © Cambridge University Press)