We don't have synonyms for compostela yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are compositely, composted and composter.
(n) :
A certificate of accomplishment given to pilgrims on completing an official route on the pilgramage to Camino de Santiago.
(n) :
Ellipsis of Santiago de Compostela: a city in Galicia, Spain, a major Christian pilgrimage site. [A city in A Coruña province, Galicia, Spain, a major Christian pilgrimage site.]
(n) :
A certificate of accomplishment given to pilgrims on completing an official route on the pilgramage to Camino de Santiago.
(n) :
Ellipsis of Santiago de Compostela: a city in Galicia, Spain, a major Christian pilgrimage site. [A city in A Coruña province, Galicia, Spain, a major Christian pilgrimage site.]