Will of Iron in Chinese / Japanese...

鐵心 can be translated as “iron heart,” “steel core,” or “iron mind” in Chinese and Japanese Kanji.

This is not a common term, but I added it here since so many were looking for “iron heart.” This is almost like saying you are without emotions or feelings - a very stoic person. This is not a Buddhist trait.

鐵掌 means “iron palm,” the martial arts technique taught by Brian Gray and others.

This term can mean different things to different people. The consensus is that rather than a type or style of martial arts, this is a technique for refining hand position and strengthening hands to strike blows with maximum force and effect.

The regime may include herbal treatments and special exercises to fortify the hands.

In more extreme versions, the carpals and metacarpal bones in the hand are systematically broken so that when they heal, they will become stronger.

Japanese note: This does make sense in Japanese (though the version shown above is the ancient form of the first Kanji), this is far from a commonly-known term.

鐵拳 is a common theme used by various schools of martial arts.

鐵 means “iron” but, in some cases, can mean “indisputable.”
拳 means fist.

Some schools use the older/Taiwanese way to Romanize the iron fist, so you may have seen it spelled “Tieh Chuan” instead of “Tie Quan.” Neither way is technically incorrect.

Note that in Mandarin, the first part of the first character sounds like the English word “tea,” blending into a soft “-eh” sound. The second character sounds a lot like “chew on” but as if it is one syllable.

After WWII in Japan, the Kanji for iron was simplified. This new Kanji form is shown to the right. If you want this modern Japanese version, please click on the Kanji to the right, instead of the button above. The characters shown to the left would still be considered the old or ancient Japanese version of this title.

鐵龍 is the title Iron Dragon in Chinese.

鋼鐵俠 is the Chinese title for Iron Man, the comic book superhero.

磨杵成針 is a Chinese proverb that means “to grind an iron bar down to a fine needle,” or “Even a bar of iron can be ground down to a needle [with perseverance].”

Figuratively, this means to persevere in a difficult task or to study diligently.

乘勢 is a short Chinese word that means to “seize the opportunity” and is similar to the English provers, “to strike while the iron is hot.”

鉄人 is a Japanese title that means iron man or strong man.

鉄人 is sometimes used as a given name romanized as Tetsujin, Temujin, Tetsundo, Tetsuhito, or Tetsuto.

鉄心石腸 is a Japanese proverb that suggests you should have the inner-strength and will as hard and steadfast as iron.

It's the Japanese way of saying, “stay strong.” This is an especially uplifting thing to say to a person in distress or recovering from a disaster. It's kind of the survivor's creed.

If you literally translate this, it means “iron will, stone guts” or “iron heart, rock-hard bowels.”