Here are some examples:
* Happy is a synonym for joyful.
* Big is a synonym for large.
* Start is a synonym for begin.
Synonyms can be helpful for:
* Avoiding repetition: Using synonyms can make your writing more interesting and engaging.
* Making your writing more precise: Different synonyms have slightly different nuances of meaning, so you can choose the one that best fits the context.
* Improving your vocabulary: Learning synonyms can help you expand your vocabulary and use language more effectively.
Keep in mind that not all synonyms are perfect replacements for each other. They may have slightly different connotations or be appropriate for different contexts.