The word 'when' is an adverb, a relative adverb, and a conjunction.
Examples:
When did you get the new car? (adverb, you 'did get when')
I'll come for a visit when I can. (relative adverb, introduces the relative clause that modifies the verb 'will come')
He visited the UN when he went to New York City. (conjunction, joins the compound 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.
The part of speech for the word diplomacy is a noun.
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 "boulevard" is a noun.
The part of speech for the word civilian is English grammar.
The word speech is a noun.
The part of speech for this particular word is a noun.
The word speech is a noun.
The word speech is a noun.
The word speech is a noun.
It is not ANY part of speech, there is no such English word as "stroobly".