The noun addition has the related adjective form additional and the adverb form additionally.
The noun addiction has the adjective form additional and the adverb form additionally (in addition).The less-common related adjective and adverb are the derivatives additive and additively.
Additionally is an adverb. Some synonyms are furthermore, also, and in addition to.
It can be a preposition and an adverb. Preposition: other than; except for Adverb: In addition; also
No. The idiomatic phrase is an adverb phrase, but it is often followed by a prepositional phrase (e.g. in addition to).
- Adverb In addition to what has been said; further; besides.
Yes, it is. It means "too" or "in addition." It can also be a conjunction.
A derivative adverb would be the adverb form of a derivative adjective: one formed from a noun or a verb by the addition of a suffix (and possibly by a prefix as well). An example would be the adjective lawful (from the noun law) and the adverb lawfully.
No. It is an adverb, meaning in addition or too. Prepositions connect noun forms, to tell where, when, how, or which one.
No. Also is an adverb. It means "in addition." It can also (arguably) function as a conjunction without "and."
The phrase "in addition" is a prepositional phrase in which "in" is the preposition and "addition" is its object. This phrase, as a phrase, is not a part of speech, although it may function as one, probably an adjective or adverb.
Yes. "Yet" is an adverb. It means in addition, besides, moreover. Also, it's a coordinating conjunction (like but), depending how it is used. Adverbs qualify a verb or an adjective.
No, it is not. The word "please" can be a verb (to oblige or make content), or as an adverb (polite addition).