Description Unit 1: Synonyms & Antonyms – Words with similar meanings and words with opposite meanings Unit 2: Hypernyms & Hyponyms – Words that include other words and words that are included within broader words Unit 3: Homonyms – Words that sound the same but have completely different meanings Unit 4: Polysemous Words – Words with the same sound but multiple meanings Unit 5: Onomatopoeia & Mimetic Words – Words that imitate sounds and words that imitate shapes or actions Unit 6: Compound Words – Words formed by combining two or more words, each retaining its own meaning Unit 7: Derived Words – Words formed by combining a bound word (that cannot stand alone) with a word that can stand alone Unit 8: Native Korean Words, Sino-Korean Words & Loanwords – Pure Korean words, words based on Chinese characters, and words borrowed from other languages that have become part of Korean Unit 9: Idioms & Proverbs – Expressions and phrases commonly used in specific situations Unit 10: Easily Confused Words Elementary Vocabulary Building Answer Key