They (referring to women or girls) are my best friends.

My friend works as a freelance writer.

Free software plays an important role in enhancing the convenience of computers.

This building is designed to be barrier-free, making it easy to use even with a wheelchair.

Free talk time is the most enjoyable.

If you use the toll-free number, you won't be charged for the call.

This knit cap is one-size-fits-all, so anyone can wear it.

I am using free icons of social media on my website.

He is living as a freelance worker.

This store offers tax-free services for foreign tourists.