The phrase "affirm their role" is correct and usable in written English.
It can be used when discussing the validation or confirmation of someone's position or function within a group or organization.
Example: "During the meeting, the manager took a moment to affirm their role in the project, ensuring everyone understood their responsibilities."
Alternatives: "validate their position" or "confirm their function".
I affirmed their role in leadership, whether it was volunteering at events, teaching Bible study, staffing our children's ministry or helping to serve communion.
During the acidotic challenge, Streptococcus and Lactobacillus increased significantly affirming their role in lactate production during acute acidosis.
Our results extend the previous findings of PPAR- γ SNPs phenotypic influences, affirming their role in the development of ESRD and prognosis of ESRD in patients of Han origin.
It's also everyone's responsibility--to stop putting others down, however indirectly or subtly, and to affirm their dignity, regardless of their role or rank.
Twenty-two emperors came here to make sacrifices to heaven, affirming their divine role as ruler and shaman.
TetR (RB838) and GntR (RB1862, RB8695) showed an up-regulation, which affirms their important role in early heat shock response [ 34].
These data indicate that these nine genes have consistent differential mRNA expression, validating results of our previous cDNA array results, and affirming their potential role in the early detection of ESCC.
They called and repeated their acknowledgment of the coalition's role in the resolution, but affirmed their disdain for how the neighborhood was treated.
Young women might be much more willing to lean in if they saw better models and possibilities of fitting work and life together: ways of slowing down for a while but still staying on a long-term promotion track; of getting work done on their own time rather than according to a fixed schedule; of being affirmed daily in their roles both as parents and as professionals.
The fundamental tension between traditional and emerging middle powers identified above namely, their role in affirming the status quo on the one hand while pushing to reform the global system on the other has been characteristic of South Africa's foreign policy expression since the country democratized in 1994.
