The idiom "and so forth" is used to indicate that there are more things to be mentioned in a list, but the speaker or writer doesn't want to list them all out. It means "and other similar things" or "and more of the same kind."
For example, if someone is describing their hobbies, they might say, "I like to read, watch movies, listen to music, and so forth." This means that there are other hobbies they have, but they don't want to list them all out because they are similar to the ones already mentioned.
You can use this idiom in both spoken and written English. It's a useful way to avoid being too repetitive or long-winded when listing things. However, it's important to make sure that the listener or reader understands what you mean by "and so forth." If you're not sure, you can always clarify by saying something like, "and other similar things like that."
• The company provides various benefits to its employees, such as health insurance, retirement plan, and so forth.
• My sister loves to listen to different kinds of music like pop, rock, and so forth.
• The politician discussed a range of issues during the debate, including education, healthcare, taxes, and so forth.
• We visited many cities in Europe, such as Paris, Rome, Prague, and so forth.
• I need to buy fruits for the salad, such as apples, bananas, and so forth.
• The library has a great collection of books, including fiction, non-fiction, science-fiction, and so forth.