The term "high school" is a compound noun, with a distinct meaning (secondary education) separate from simply a school that is high. It can also be used as an adjective/noun adjunct for things associated with high schools (e.g. high school teacher) and is usually not hyphenated.
The word school is a noun.
It can also be a verb as in to educate.
it is a noun
The word hot is an adjective. It describes something with a high temperature.
An adjective is a part of speech.
The part of speech for the word civilian is English grammar.
The part of speech for the word diplomacy is a noun.
The word speech is a noun.
noun
noun
Irate is an adjective.
Turned is a verb.
The word hot is an adjective. It describes something with a high temperature.
An adjective is a part of speech.
The word eventful is an adjective. It describes high levels of activity.
Turned is a past tense verb in that sentence.
The part of speech for this particular word is a noun.
The part of speech that the word my is used as is an adjective.
H is a letter, not a word. To be a part of speech, it needs to be a word.
The part of speech for the word civilian is English grammar.