謝 is the Chinese character for the Taiwanese surname Hsieh.

This is also a surname in mainland China where it is romanized as Xie. The meaning is thanks or thank you.

忍 is just the first character of “Ninja.”

It means to beat, to endure, or to tolerate.

Some use this as the short form of “Ninja” but it would be more correct to use the two-character version in most cases (and for clarity). Other definitions of this Kanji include: to bear, put up with, conceal, spy, or sneak. It is also a character in Korean Hanja and Chinese but not well-known with this meaning but rather a definition like “patience.”

Note that when writing this as Kanji, Japanese will tend to write it in the form shown to the right. If you select our Japanese master calligrapher, please expect this Kanji form (yes, it's just one stroke that is slightly different in location, crossing another stroke in the Japanese Kanji form).

忍法 is Ninpo which can be translated as “Ninja Arts” from Japanese.

If you want this to mean “Ninja Arts,” you should consider this to be Japanese only. In Chinese, someone might read this as “patience law” or “the art of patience.”

The first character can be associated with “Ninja” since it is the “Nin” of “Ninja.” But the literal meaning is patience or perseverance. The second character means “law” or “method.” Often this is extended to mean or be translated as “arts.”

Within a Buddhist context (especially Chinese Buddhism), this is the method or stage of patience, the sixth of the seven stages of the Hīnayāna in the attainment of arhatship, or sainthood.

謝謝 is how to say thank you in Chinese. It is pronounced a bit like “shea shea” as in the English word for shea butter. Except you pronounce the X like “sh” but with your tongue firmly at the bottom of your mouth.

Unless you are putting this wall scroll near the exit of your store or restaurant to thank customers for coming, it is a bit of an odd selection. A gift of thanks to another person should be a more personal selection with more meaning than a simple thank you. Although common to write xie xie inside a card or letter of thanks.

Technically, this can be pronounced in Japanese but in Japan, it’s still the Chinese way to say thank you. It’s like an English speaker saying "gracias" (Spanish word for thank you).

謝 is the Cantonese surname Tse.

Note: 謝 is Xie from Mandarin Chinese. There is another Cantonese surname 蔡 that can romanize as Tse. Make sure you are getting the right one!