Which word is a homophone for "two"?

The word "two" has a homophone in "too." Homophones are words that sound the same but have different meanings and spellings. In this case, "two" refers to the number 2, while "too" can mean "also" or can express an excessive amount of something, such as "too much."

The similarity in pronunciation creates confusion, but understanding their meanings distinguishes them in context. This reinforces the understanding of homophones in general, highlighting the importance of recognizing words that sound alike but serve different functions within the English language. The other options do not share the same pronunciation as "two," making them inappropriate choices. "To" is a preposition, "tau" is the Greek letter, and "twofold" indicates something that is double, none of which serve as homophones for "two."