MASQUERADE is validvalid

[v MASQUERADED, MASQUERADES, MASQUERADING] : MASQUERADER [n]

132,705 of 196,601 in NWL2023·also valid in CSW24

an assembly of people wearing masks, costumes, esp. at a ball [n -S] / to disguise oneself [v MASQUERADED, MASQUERADING, MASQUERADES]