The whole text of his speech was published in the daily newspaper.
A noun is a word that is a person, place or thing.
The use of the word in the sentence derminates the part of speech
It depends on the style guide you follow. Some style guides recommend capitalizing the first letter after a colon if the text following the colon is a complete sentence. Others suggest using lowercase unless the text is a proper noun or begins a complete sentence.
The intrigue killed him.
'Set' as a noun: She gave me a beautiful set of dishes.
When using a proper noun, or begining a sentence
The mouse went that way.
Snowboarding is an exciting sport.
A noun is a person place or thing so peas is a thing so it is a noun just write something about peas and you have a sentence using the word peas as a noun. Heres one "I don't like peas."
Filly is a noun. The fill ra around the paddock
I will abound the road
We're naming our son "Aspect".