Final answer:
A dictionary can help you find synonyms for words you are unsure of and improve your vocabulary.
Step-by-step explanation:
Synonyms for the underlined words in the given question:
- Choose - Select
- Spelling - Orthography
- Vaguely - Indistinctly
- Look up - Consult
- Allowed - Permitted
Using a dictionary can help you find synonyms for words that you are unsure of. It is a helpful tool for improving your vocabulary and using words correctly in your writing.