Definition of "Royal" :

noun: stag with antlers of 12 or more branches

noun: a sail set next above the topgallant on a royal mast

adjective: invested with royal power as symbolized by a crown

"The royal (or crowned) heads of Europe."

adjective: belonging to or befitting a supreme ruler

"Treated with royal acclaim."

adjective: being of the rank of a monarch

"Of royal ancestry."

adjective: of or relating to or indicative of or issued or performed by a king or queen or other monarch

"The royal party."

adjective: established or chartered or authorized by royalty

"The Royal Society."