It can be (named conspirators). But it is the past tense and past participle of the verb to name, so is more often a verb.
A definite adjective names something specific...the, an, etc.
Rectangular is an adjective, not a noun. The answer depends on rectangular WHAT!
Business is a noun. It names an occupation.
The word 'name' is a noun (name, names), a verb(name, names, naming, named), and an adjective. Examples:Noun: I like the name Susan for a girl and Scott for a boy.Verb: What did they name the baby?Adjective: The name brand products are much more expensive.
Bovinae. But different breeds have more specific names.
An option is a noun. It names a person, place or thing.
No. Alex (short for Alexander, Alexandra or other names) is a proper noun.
No. Substitute "better" for "gooder." The names of the girls must be capitalized, people's names are proper nouns. Adjective good, comparative better, superlative best.
Least is normally used as a determiner or adverb, but is used as an adjective when used in names of very small animals and plants, e.g. least shrew.
No, eastern is a directional adjective. There is a proper noun Eastern that is used in the names of several companies.
riddled
It can be either. As a preposition, it names an object or state it is above. It can also be an adjective (the line above).