Japanese Word Images for the Word "Observer".
The left side Japanese word "立会人(たちあいにん-tachiainin)" means "Observer".
The below images are Japanese Kanji and Hiragana of some Japanese words which mean "Observer".
You can learn how to write these Japanese words by referring the Kanji stroke orders of these words.
And we use the Japanese word "監視人(かんしにん-kanshinin)" for translating this word into Japanese, too.
Also we often use the Japanese word "観測者(かんそくしゃ-kansokusha)" for translating this word into Japanese.
And the word "Observer" is often in Japan so we often use the word "オブザーバー(おぶざーばー-observer)" for expressing the pronunciation of "Observer" by using Japanese Katakana characters.