Final answer:
The untrue statement is that synonyms are restricted to certain parts of speech; synonyms can belong to any part of speech. The closest word in meaning to 'hypothesis' is 'suggestion,' as both indicate an idea that is proposed and requires further investigation.
Step-by-step explanation:
The student asks which of the following statements is untrue:
- Antonyms are words with opposite meanings.
- Synonyms are restricted to certain parts of speech/word classes.
- Hyponyms are words that serve as specific examples of a general concept.
- A synonym is a word having the same or nearly the same meaning as another word/words.
The untrue statement here is option B. Synonyms are not restricted to certain parts of speech or word classes; rather, they can belong to any part of speech as long as they have the same or nearly the same meaning as another word.
Now, considering the rest of the questions, the word which is closest in meaning to hypothesis is option D, suggestion. A hypothesis is an assumed explanation that requires further investigation to be confirmed or disproved, much like a suggestion.