Can Synonyms can serve as nouns verbs adverbs and adjectives.?
Yes they can. A synonym can be a noun, verb, adverb, or an
adjective. A synonym is a word that has a similar meaning to
another word, but not always the exact same meaning. For example,
sofa is a synonym for couch. Jet is a synonym for plane.
going on a cruise, exploring, globe-trotting, going on the road,
jet-setting, going on a junket, peregrinating, sightseeing, taking
a trip, traveling, vacationing, voyaging