Noun
one of the traditional categories of words intended to reflect their functions in a grammatical context
Source: WordNetI think the adverb is a much-maligned part of speech. It's always accused of being oppressive, even tyrannical, when in fact it's so supple and sly. Eleanor Catton
Adverbs as a "catch-all" category Adverbs are considered a part of speech in traditional English grammar, and are still included as a part of speech in grammar taught in schools and used in dictionaries. Source: Internet
Affixes do select their host: They only attach to the word they are connected to semantically, and generally attach to a particular part of speech. Source: Internet
Each root word has an inherent part of speech : nominal, adjectival, verbal, or adverbial. Source: Internet
In English dictionaries, which typically still do not treat determiners as their own part of speech, determiners are often recognizable by being listed both as adjectives and as pronouns. Source: Internet
For A part of speech (abbreviated form: PoS or POS) is a category of words (or, more generally, of lexical items ) which have similar grammatical properties. Source: Internet