Noun
Plaid is a noun (a pattern) and an adjective (a plaid pattern).
I wouldn't... too much plaid
part of speech
The part of speech for this particular word is a noun.
Typically, It is a stereotype that country musicians wear plaid. No musicians are specifically known for wearing plaid, no matter it be plaid shirts or even plaid pants.
the plural of plaid is plaids...
It is not possible to answer this question. It does not specify what it is that was meant to have plaid a part on the founding of the republic.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
A shawl that is plaid.
plaid like a plaid skirt or top