The phrase "royal yard" is a noun. The plural is royal yards.
Yard is a noun.
The word "royal" is an adjective. It is used to describe things related to a king or queen, such as royal family or royal palace.
my granda has/have a beatiuful yard at the back of her city
The word "regal" is an adjective that describes something royal or majestic. It can be found throughout a speech to convey a sense of power, authority, and dignity.
Captain Jaggery was below deck during Charlotte's climb to the royal yard, unable to see what she was doing.
"Wildly" is an adverb . . . it modifies a verb (action word). "He was running around the yard wildly". 'Wildy' modifies the verb, 'running'.
His speech encouraged the audience at the Royal Colonial Institute to continue the patriotic practice of imperialism.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath