One of the most familiar terms in the language of taxation is the tax bracket. It refers to the range of income that determines how much tax an individual must pay on that income. However, there are other words that can also be used interchangeably instead of tax bracket. For instance, revenue bracket, tax range, taxable income level, income band, and tax slab are all synonyms that describe a specific range of income within which the individual's taxable income falls, and the tax rate is set accordingly. The use of these different terms helps individuals and businesses to understand the complexity of taxes better.