The Caribbean islands are called the West Indies to correct the name, Indies, mistakenly given by Christopher Columbus. Columbus thought he had reached the Indies of Asia.
We also have lists of Words that end with tax, and words that start with tax. Search for words that start with a letter or word: 11 Letter words that contain tax. 1  Epitaxially. 2  Paclitaxels. 3  Phototaxies. 4  Phyllotaxes. 5  Phyllotaxis. 6  Pleiotaxies. 7  Stereotaxic.
If it refers to a governmental body that uses it as part of its name, such as Federal Trade Commission, it would be capitalized. Regarding the tax return, if you are writing the name of a specific tax return form, it is considered a proper noun and would be capitalized. Form 706 United States Estate Tax Return.