Catholic dogma versus catholic doctrine

Does the Church hold both as equals ?

Doctrine is more general: all Church teaching in matters of faith and morals.

Modern Catholic Dictionary has:Doctrine: Any truth taught by the Church as necessary for acceptance by the faithful. …
Dogmas are those doctrines which the Church proposes for belief as formally revealed by God.

So as a catholic I would have to believe Mary to be CoRedemptrix even though it is not yet Dogma?

Co-redemptrix is a popular title for The Blessed Virgin Mary, not a Church teaching, it is not defined.

Thank you

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