キックボクシング is the Japanese Katakana word for kickboxing.

This is a transliteration or borrowed word, meaning that it's meant to sound like “kick-boxing,” rather than being an organic Japanese Kanji word that means “kick-boxing.”

Note: Because this title is entirely Japanese Katakana, it should be written by a Japanese calligrapher.

拳闘 is the term used in Japanese Kanji to refer to the original Olympic sport of combat and fighting.

This can also be translated as prizefighting.

The first Kanji means fist. The second means fight. So when literally translated, this means “fistfight” (though understood in Japanese as a more refined sport, versus street fighting).

Note: A completely different second character is used in the Chinese word for boxing but a Chinese person would still be able to guess the meaning of these Kanji.

This literally means “fighting spirit” or “the will to fight.”

As in the spirit that a warrior, soldier, athlete, or fighter must possess.

闘魂 is an alternate title with the meaning “fighting spirit” or “the will to fight.”

闘気 is an alternate Japanese title for “fighting spirit.”

This one is more like “fighting energy.” The second character is “ki,” the same “ki” in Aikido. This “ki” is the spiritual energy that all martial arts practitioners must master and focus on.

酔拳 is the Japanese version of the title for Drunken Fist or Drunken Boxing.

ムエタイ is the Japanese Katakana title for “Muay Thai” or “Thai boxing.”

Note: Because this title is entirely Japanese Katakana, it should be written by a Japanese calligrapher.

ソバット is the Japanese Katakana for the French word, Savate, meaning “kick-fighting” or “French boxing.”

Note: Because this title is entirely Japanese Katakana, it should be written by a Japanese calligrapher.

八卦掌 is the title Baguazhang, a form of Chinese boxing.

Literally translated, this means “Eight Trigrams Palm.”

You will also see this romanized as “Ba Gua Zhang,” “Bagua Zhang,” or “Pa Kua Chang” (same characters, just different spacing or romanization used in mainland China versus Taiwan).

八卦掌 is also known in Japan as hakkeshou or hakkesho.