pomp /pɒmp $ pɑːmp/ BrE AmE noun [uncountable]
[ Date: 1300-1400 ; Language: Old French ; Origin: pompe , from Greek , 'procession' ]
formal all the impressive clothes, decorations, music etc that are traditional for an important official or public ceremony:
The Queen’s birthday was celebrated with great pomp and ceremony.
all the pomp and circumstance (=an impressive ceremony) of a treaty signing