要(よう)

よう
noun, prefix
need, necessity
1. need, necessity, requirement
Something that is needed or required. Often used as a prefix meaning 'requiring' or 'needing'.
要(よう)加熱(かねつ)。
Requires heating. (Needs to be heated.)
Common food label
要(よう)予約(よやく)。
Reservation required.
要(よう)冷蔵(れいぞう)と書(か)いてあったので、冷蔵庫(れいぞうこ)に入(い)れた。
It said 'requires refrigeration,' so I put it in the refrigerator.

要(よう) is commonly used as a prefix meaning "requires" or "needs."

COMMON COMPOUNDS WITH 要(よう):

  • 要(よう)加熱(かねつ): requires heating
  • 要(よう)冷蔵(れいぞう): requires refrigeration
  • 要(よう)予約(よやく): reservation required
  • 要(よう)確認(かくにん): confirmation required
  • 要(よう)注意(ちゅうい): caution required
  • 要(よう)相談(そうだん): consultation required

OPPOSITE:

  • 不要(ふよう): unnecessary, not required

SIMILAR WORDS:

  • 必要(ひつよう): necessity, need (more commonly used as a standalone word)
  • 要求(ようきゅう): demand, requirement
general
Added 2026.2.4 22:51 · Revised 2026.2.19 21:32
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