The following is taken from the body of a recently asked question asking how many in the New Testament are called or actually claim to be the brother or sister of Jesus Christ. It is not scoped for Catholic answers only but it is asked by a Catholic and from a Catholic perspective:
Regardless of the doctrine of the Perpetual Virginity of Mary acknowledged as dogma by most Christians, which would necessitate a different interpretation of the words "brother" and "sister"
It appears by this statement as though Roman Catholics, by necessity, assign interpretations to words in Scripture based upon Dogmatic statements made from Rome rather than their plain biblical usage. The Perpetual Virginity of Mary was dogmatized in 553 in Constantinople but it had been talked about within the church since it's possible earliest witness in the apocryphal Protogospel of James (circa 150). The Assumption of Mary, however, wasn't dogmatized until 1950 and, arguably has no biblical attestation.
I don't know if there are any specific words in Scripture whose meanings, by necessity, must be interpreted differently due to accepting the dogma of Mary's Assumption but theoretically it is possible. Do Roman Catholics, by necessity, assign meanings to words in the Bible based upon dogmatic statements made hundreds and even thousands of years after the Apostles were finished writing Scripture? Is this really how Roman Catholics interpret Scripture?