Synonyms & Antonyms
Synonyms are words with nearly the same meaning (rapid/swift); antonyms are opposites (expand/contract); recognizing both is core to vocabulary items and context-clue reasoning.
Prefixes generate antonyms directly: un-, in-, dis-, and non- flip meaning, which links this skill to word-part analysis. A thesaurus habit builds the word bank that makes elimination fast on test day.