Yesterday, a former partyactivist and donor said he was defecting.
Times, Sunday Times (2014)
Partyactivists are expected to overwhelmingly support the controversial plan.
The Sun (2011)
But winning over the partyactivists may be another matter.
Times, Sunday Times (2007)
Definition of 'activist'
activist
(æktɪvɪst)Explore 'activist' in the dictionary
countable noun
An activist is a person who works to bring about political or social changes by campaigning in public or working for an organization.
Definition of 'party'
party
(pɑːʳti)Explore 'party' in the dictionary
countable noun
A party is a political organization whose members have similar aims and beliefs. Usually the organization tries to get its members elected to the government of a country.