Secret in Chinese / Japanese...

闇 is the shortest and universal way (in Chinese, Japanese Kanji, and old Korean Hanja) to write “darkness.”

In Chinese, this can mean dark, gloomy, hidden, secret, to shut the door, or unilluminated.

In Japanese, this can mean darkness, the dark, black-marketeering, dark, shady, or illegal.

In old Korean Hanja, this can mean dark, obscure, hidden, or secret.

Note that there is an alternate form of this character. It is used as an alternate in all three languages (that rarely happens). You can see this alternate version to the right. If you want to order that version, please click on that character, instead of the button above.

黑闇 is the two-character Chinese word for darkness.

The first character alone means black or dark.

The second character has several possible meanings, depending on context; They include: to shut the door, unilluminated, dark, gloomy, hidden, or secret.

Together, these two characters will, in most cases, be translated as dark or darkness.

暗黒 is the two-character Japanese word for darkness.

The first Kanji can mean unilluminated, dark, gloomy, hidden, or secret.
The second character means black or dark.

Together, these two Kanji will be understood as dark or darkness.

密 can mean secret, secrecy, confidential, quiet, still, and/or esoteric.

As a piece of calligraphy artwork, it will be read with this secret or secrecy meaning.

When used in the context between people, this can mean: close; close together; intimate; closed in.

When referring to materials or objects, it can refer to thickness, density, thick, dense, fine, and/or small.

Notes:
In Chinese, this can be the surname Mi.
In Japanese, this can be the name Mitsu.