/ˌsɑːlɪˈdærəti/
soli·dar·ity
BrE /ˌsɒlɪˈdærəti/
NAmE /ˌsɑːlɪˈdærəti/
[U]
support by one person or group of people for another because they share feelings, opinions, aims, etc.
community solidarity
~ with sb
to express/show solidarity with sb
Demonstrations were held as a gesture of solidarity with the hunger strikers.