Third-person singular simple present indicative form of procession.(verb)
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Use "processions" in a sentence
"Chong Mong-ju disaffected half the provincial priesthood, until they pilgrimaged in processions a mile long to the palace gates and frightened the Emperor into a panic."
"At the word of Pope St. Pius V, crowds fill the streets in processions, singing hymns and praying the Rosary."
"As an aside, I am always pleased when I see the fuller form of canopy used in processions of the Blessed Sacrament, as there is a certain dignity and particular solemnity that accompanies it, and by correspondence, which speaks to and teaches of the supreme dignity of that which it accompanies."