It is both an adverb and a conjunction.
The word however is a very useful tool in the English Language as a means of transitioning from one point to another. It is primarily used as an adverb, where it becomes the cohesive, structural glue that binds together ideas in writing. It denotes, as a connective transition word, an exception, a manner (or method) or a limiting degree. It helps to focus attention on what follows it in a sentence. For example, "She may be an excellent shot; however, the wind is gusting between 35 and 60 miles per hour."
A minor grammarian controversy brewed over using the word however to begin sentences. Partially because it is not frequently used to begin sentences, it has becoming more widely accepted to do allow it with little resistance. Beginning a sentence with however has also become more widely accepted by experts since it is unlikely to lead to confusion making it far less controversial than other parts of speech like the comma which demands respect for its power to sort out confusion.
The word however can also be used as a conjunction. For example: "You may spend the money however you wish."
The word 'spices' is a noun. However, the word 'spicy' is an adjective.
"Reappearance" is a noun. Other forms of the word are other parts of speech, however. "Reappear" is a verb, for example.
The part of speech that the word my is used as is an adjective.
A suffix changes a word's part of speech. For example, the word 'happy' is an adjective. But when you add a suffix, which is an ending, it can change the part of speech. Happily is an adverb. Happiness is a noun.
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Unsufficient isn't a word. However, insufficient is a word. It's an adjective.
The word order is a noun. However, it can also be a verb.
The word 'spices' is a noun. However, the word 'spicy' is an adjective.
"Reappearance" is a noun. Other forms of the word are other parts of speech, however. "Reappear" is a verb, for example.
An adverb is a part of speech that modifies verbs, adjectives, or other adverbs by providing information about how, when, where, or to what extent something is done.
The word move can be a noun. However, the verb form is more common.
Paliside is not a word in the English language. However, palisade is a word. It's a noun.
The contraction "we're" is a combination of the pronoun "we" and the verb "are," functioning as a contraction for the present tense of "we are." It is a contraction commonly used in informal speech and writing.
The part of speech that the word my is used as is an adjective.
The part of speech for this particular word is a noun.
The part of speech for the word diplomacy is a noun.
The part of speech for the word civilian is English grammar.