to extol or honor in a solemn manner; as, to celebrate the name of the most high.-to honor by solemn rites, by ceremonies of joy and respect, or by refraining from ordinary business; to observe duly; to keep; as, to celebrate a birthday.-to perform or participate in, as a sacrament or solemn rite; to solemnize; to perform with appropriate rites; as, to celebrate a marriage.