白
しろ
shiro
= white; innocent; blank
白 (shiro) is the Japanese word for white, but it carries symbolic weight that reaches far beyond a simple color name — purity, mourning, innocence, and a fresh start all converge in this single kanji.
As a color, 白 describes anything white: a white cat is 白いネコ (shiroi neko), using the i-adjective form 白い (shiroi) when modifying a noun directly. As a standalone noun, 白 (shiro) names the color itself — for example, 白が好きです (shiro ga suki desu, “I like white”).
Beyond the physical hue, 白 carries a meaning of innocence or being without fault, contrasting directly with 黒 (kuro, black), which implies guilt. The expression 白黒つける (shirokuro tsukeru) means “to settle something in black and white” — to reach a clear, unambiguous conclusion. In a legal or moral context, saying someone is 白 (shiro) means they are innocent, while 黒 (kuro) means guilty.
白紙 (hakushi, literally “white paper”) means a blank sheet and, by extension, a clean slate or fresh start — for example, 計画を白紙に戻す (keikaku wo hakushi ni modosu, “to scrap a plan and start from scratch”).
In compound words, 白 is read as haku or byaku rather than shiro: 白米 (hakumai, white rice), 白血球 (hakkekkyū, white blood cells), 白状する (hakujō suru, to confess). Recognizing when to use shiro versus haku/byaku is key to reading kanji compounds fluently.
The most common beginner mistake with 白 is confusing the noun form with the adjective form. When describing something as white, you must use 白い (shiroi) — an i-adjective — not 白 alone. Saying 白ネコ (shiro neko) is possible as a compound noun (“white cat” as a type), but in a sentence like “The cat is white,” you need ネコは白いです (neko wa shiroi desu).
白黒 (shirokuro) is worth memorizing as a set phrase. It can mean the literal black-and-white of a photograph (モノクロ/monokuro is also used), but idiomatically it means “clear-cut” or “definitive” — 白黒つける means to force a clear decision where ambiguity existed.
In formal or written Japanese, 白 in compounds shifts to haku: 告白 (kokuhaku, confession of love or crime), 白紙 (hakushi, blank paper), 白旗 (hakki, white flag of surrender). Paying attention to these on/kun reading shifts will help you decode a wide range of vocabulary.
The kanji 白 is a single-component character with several origin theories. One common explanation traces it to a depiction of a white acorn or the thumb, which in ancient Chinese was used to represent something small and pale. Another widely cited theory is that 白 derives from 日 (sun) with an extra stroke at the top, representing the sun at its zenith — blazing white light at midday. A third interpretation links it to the skull, symbolizing bleached white bone. Whichever origin is correct, the character has been used since ancient times to mean white, bright, and clear. It appears in the Jōyō kanji list and is one of the first characters taught to Japanese schoolchildren, partly because of its simple stroke order (5 strokes) and its frequency in everyday vocabulary.
Everyday use
この壁を白に塗り替えたら、部屋が広く見えるようになった。
Kono kabe wo shiro ni nurikaetara, heya ga hiroku mieru yō ni natta.
After repainting this wall white, the room started to look bigger.
Casual / Social Media
最近、白いワンピースがまた流行ってるよね。
Saikin, shiroi wanpīsu ga mata hayatteru yo ne.
White dresses are trending again lately, aren’t they.
Formal / Cultural context
調査の結果、彼は白であることが証明された。
Chōsa no kekka, kare wa shiro de aru koto ga shōmei sareta.
As a result of the investigation, he was proven innocent.
In Japan, white is the traditional color of mourning, a role that surprises many Westerners expecting black. At funerals, white funeral kimono (白装束, shirogoshōzoku) are draped over the deceased, and mourners may offer white chrysanthemums. This association with death and passage coexists with white’s meaning of purity — the color marks a threshold between the living world and what lies beyond. White is also the color of the burial shroud in Buddhist funeral rites, reinforcing the idea of leaving the world in a state of pure, unadorned simplicity.
In Shinto ritual, white signals sacred space and divine purity. Shinto priests wear white robes (白衣, hakui), and the rope barriers (shimenawa) marking holy ground are often decorated with white paper streamers (shide). In sumo wrestling, white chalk lines mark the boundary of the dohyō (ring), and the ritual purification of the ring with salt before a match echoes this deep connection between white, cleanliness, and the sacred. White rice (白米, hakumai) holds a similar symbolic status — polished, pure, and central to Japanese ceremonial meals.