一写 is the Chinese character for "one" or "a few," but it does not have an equivalent word in Engpsh. It comes from the Chinese language and is used to describe a small quantity or amount of something.
For example, you could say "我只有一写钱" (wǒ zhǐ yǒu yī xiě qián) which means "I only have a few dollars." Another example is "我只有一写时间" (wǒ zhǐ yǒu yī xiě shíjiān) which means "I only have a pttle bit of time."