(だいだい)

だいだい
noun
bitter orange; orange (color)
1. bitter orange; Seville orange
A citrus fruit (Citrus aurantium) with a sour, bitter taste. Traditionally placed on top of kagami mochi as a New Year's decoration.
鏡餅(かがみもち)(うえ)(だいだい)(かざ)る。
Place a bitter orange on top of the kagami mochi.
(だいだい)果汁(かじゅう)()()わりに使(つか)われることがある。
Bitter orange juice is sometimes used as a substitute for vinegar.
(だいだい)代々(だいだい)(つう)じるため縁起(えんぎ)()いとされる。
The bitter orange is considered auspicious because its name sounds like 'from generation to generation.'
2. orange (color)
The color orange, named after the fruit. Often written as 橙色(だいだいいろ) for clarity, but (だいだい) alone can also mean the color.
夕焼(ゆうや)けが橙色(だいだいいろ)()まった。
The sunset was dyed orange.
(だいだい)のTシャツを()った。
I bought an orange T-shirt.
信号(しんごう)橙色(だいだいいろ)()わったら注意(ちゅうい)して(すす)んでください。
When the traffic light turns orange, proceed with caution.

The word (だいだい) originally refers to the bitter orange fruit, a citrus used in traditional Japanese New Year decorations. The fruit is placed on top of 鏡餅(かがみもち) (stacked rice cakes) because its name is a homophone of 代々(だいだい) (from generation to generation), symbolizing the continuation of the family line.

COMMON COLLOCATIONS:

  • 橙色(だいだいいろ) (orange color)
  • (だいだい)(かざ)る (to decorate with a bitter orange)
  • (あざ)やかな(だいだい) (vivid orange)

CULTURAL NOTE:
In modern Japanese, the imported word オレンジ is more commonly used for the color orange in casual speech, while (だいだい) or 橙色(だいだいいろ) is the traditional Japanese color name. The bitter orange fruit itself is different from the sweet eating orange (蜜柑(みかん)).

SIMILAR WORDS:

  • オレンジ — orange (loanword; used for both the color and the sweet fruit)
  • 蜜柑(みかん) — mandarin orange (the common sweet orange eaten in Japan)
  • 柑橘(かんきつ) — citrus (the broader category of citrus fruits)