What part of speech is daily?

Answer 1

Daily is most often an adverb, I would think.

Answer 2

The word, "daily," can be a noun, adjective, or adverb. As an adjective it describes a time period and is of the "adjective order," "frequency."

Yes, there are adjectives of frequency! Although a rule of thumb states that adverbs (not adjectives) answer the questions, "how, when, or where," what ultimately determines a modifier's linguistic nomenclature in a sentence is whether it describes a noun, pronoun, or verb.

Adjective: In the morning I read an English-language daily newspaper.

In that sentence the word, daily, describes the noun, newspaper, so is classed as an adjective. Here are ways to use daily as a noun and an adverb in two sentences of similar meanings:

Noun: The newspaper I read in the morning is an English-language daily.

Adverb: In the morning daily I read an English-language newspaper.

It is important to remember that language is living and word order is not fixed. Using daily as an adjective you also could say, In the morning I read a daily English-language newspaper, and be equally correct. Word-order choice hinges first on clarity of meaning, and then on your chosen emphases.

Answer 3

The word daily is an adjective.

It can also be a noun when referring to a newspaper that is published every day.