赤ん坊

あかんぼう
noun
baby; infant
1. baby; infant
A very young child, typically under one year old.
赤(あか)ん坊(ぼう)が泣(な)いている。
The baby is crying.
赤(あか)ん坊(ぼう)がぐっすり眠(ねむ)っている。
The baby is sleeping soundly.
彼女(かのじょ)は先月(せんげつ)赤(あか)ん坊(ぼう)を産(う)んで、今(いま)は毎日(まいにち)世話(せわ)をしている。
She gave birth to a baby last month and is now taking care of it every day.
隣(となり)の家(いえ)の赤(あか)ん坊(ぼう)が毎晩(まいばん)泣(な)くので、最近(さいきん)あまり眠(ねむ)れていない。
The baby next door cries every night, so I haven't been sleeping well lately.
赤(あか)ん坊(ぼう)が生(う)まれたばかりの頃(ころ)は夜中(よなか)に何度(なんど)も起(お)きなければならなくて、毎日(まいにち)大変(たいへん)だった。
When the baby was first born, I had to get up many times in the middle of the night, and every day was exhausting.

赤(あか)ん坊(ぼう) refers specifically to a baby or infant, typically under one year old.

ETYMOLOGY:
From 赤(あか) (red) + 坊(ぼう) (boy/child), referring to the reddish skin color of newborns.

SIMILAR WORDS:

  • 赤(あか)ん坊(ぼう): baby, infant (neutral)
  • 赤(あか)ちゃん: baby (affectionate, more common in speech)
  • 乳児(にゅうじ): infant (formal/medical)
  • 幼児(ようじ): toddler, young child (1-6 years)
  • 新生児(しんせいじ): newborn (medical term)

COMMON EXPRESSIONS:

  • 赤(あか)ん坊(ぼう)が泣(な)く: baby cries
  • 赤(あか)ん坊(ぼう)を抱(だ)く: to hold a baby
  • 赤(あか)ん坊(ぼう)の世話(せわ): baby care
  • 赤(あか)ん坊(ぼう)を寝(ね)かせる: to put a baby to sleep

NOTE:
赤(あか)ちゃん is more commonly used in everyday conversation, while 赤(あか)ん坊(ぼう) sounds slightly more formal or literary.

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Added 2026.1.8 12:55 · Revised 2026.3.18 19:11
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