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What is 1 + 3?
a word that can serve as the subject or object of a verb
a function word that is used in place of a noun or noun phrase
a word that modifies a noun or pronoun.
a content word that denotes an action or a state
the word class that qualifies verbs or clauses
the subject matter of a conversation or discussion
one of the two main constituents of a sentence
a function word that combines with a noun or pronoun or noun phrase to form a prepositional phrase that can have an adverbial or adjectival relation to some other word
two words that can be interchanged in a context are said to be synonymous relative to that context
two words that express opposing concepts