From The Top Ten Distinctions Between Millionaires and The Middle Class by Keith Smith, P 95.
"Perhaps the greatest advantage of owning your own business is the tax advantage. Business owners can write off several things that you can’t as an employee. I am not a tax attorney or tax strategist, so I will not offer advice here, but you absolutely must learn about the tax advantages you are entitled to as a business owner."
Does (write off) mean (reduce) or (delete) or what exactly?