Does Nissan mean 23?

No, Nissan does not mean 23. While the word "Nissan" is used to refer to the second month of the year in the Japanese calendar, it does not have any specific meaning or association with the number 23.

In Japanese, the word for 23 is "nijusan" (二十三), which is a combination of the words for "two" (ni), "ten" (ju), and "three" (san). The word "Nissan," on the other hand, is a name that was created for the Nissan Motor Company and does not have any numerical significance or meaning.

It is worth noting, however, that the Japanese word for "sun" or "day" is "nichi" (日), which is pronounced similarly to "Nissan" in Japanese. This similarity in pronunciation has led to some playful wordplay in Japanese media and advertising, with Nissan being referred to as "the company of the sun" or "the company of the day" in some contexts.