[noun] [C + singular or plural verb] - a group of people sent to speak or act for othersThey led/sent a deputation to Parliament.The deputation from the EU arrives/arrive tomorrow.The minister has agreed to receive a deputation of local government officials.She was sent on a deputation to see the Pope.
DEPUTATION
Meaning of DEPUTATION in English
Cambridge English vocab. Кембриджский английский словарь. 2012