solidarize
/sɒlɪdæraɪz/Definitions
1. verb
to unite or join with others in a common cause or feeling, especially in a spirit of mutual support or cooperation
“The community came together to solidarize with the families affected by the disaster.”
2. verb
to make or become similar in interests, feelings, or aims
“The two artists decided to solidarize their styles and collaborate on a new project.”
3. verb
to make or become solid or united
“The team’s efforts helped to solidarize their position and gain more support.”