Namu Amida Butsu in Chinese / Japanese...

南無阿弥陀仏 is the modern Japanese version of “Namu Amida Butsu” or “The Compassionate Amitabha Buddha.”

Some will translate this as “I sincerely believe in Amitabha; Lord have mercy on me.”

This phrase especially applies to Japanese Pure Land Buddhists.

There is a universal version using ancient characters (with more strokes) for the 4th and last characters. That version is also used in Chinese, Korean, and occasionally Vietnamese. This is used to pay homage to Amitabha Buddha.

See Also:  Bodhisattva | Buddhism | Nirvana

南無阿彌陀佛 is how to express “The Compassionate Amitabha Buddha” (especially for the Pure Land Buddhist Sect).

Some will translate as “Homage to Amitâbha Buddha” or “I seek refuge in the Amitâbha Buddha.”

This is valid in Chinese characters, Japanese Kanji, and old Korean Hanja.

Sometimes modern Japanese use a different version of the 4th and last Kanji, but the version shown here is the most universal.

This is used to pay homage to Amitabha Buddha.

See Also:  Bodhisattva | Buddhism | Nirvana

菩薩 is the title of a Buddhist deity that exists to help you reach enlightenment.

In Buddhist beliefs, a bodhisattva (bodhisatta) is dedicated to helping us achieve enlightenment. Bodhisattva means enlightenment truth which is bodhi sattva in Sanskrit.

This term is sometimes used to refer to a kindhearted person, one who will sacrifice himself/herself for others and lacks ego or desire but is instead devoted to the good and well-being of others.

See Also:  Buddha | Namo Amitabha

觀音/観音 is the Buddhist deity known as the Goddess of Mercy or Bodhisattva of Compassion.

In Chinese, the proper name of this being is Guan Yin. There is some debate as to whether Guan Yin is female. The argument comes from some scripture that suggests Buddhist deities take on the male form. Others say that Guan Yin has no sex. And still, others are okay with the female representation of Guan Yin.

This bodhisattva is also known or Romanized in the following ways:
Mandarin Chinese: Guan Yin, Kuan Yin, Kwan Yin.
Japanese: Kannon, Kwannon.
Sanskrit: Bodhisattva Avalokitesvara.
Korean: Gwan-eum.
Vietnamese: Quan Âm.
Thai: Kuan Eim.
English: Bodhisattva of Mercy and Salvation, Goddess of Compassion, Buddha of Mercy, et al.

Note: The first character has a slight variation in Japanese. If your audience is specifically Japanese, you may want to select that version.

See Also:  Buddhism | Goddess | Namo Amitabha | Bodhisattva