八歳(はっさい)

はっさい
noun
eight years old
time-generalnumber
1. eight years old
The age of eight; used to state someone's age in years. Also written 8(はっ)歳(さい) in numerals. Appears in questionnaires, forms, medical records, and everyday conversation.
娘(むすめ)は八歳(はっさい)です。
My daughter is eight years old.
八歳(はっさい)の誕生日(たんじょうび)を迎(むか)えた。
He celebrated his eighth birthday.
八歳(はっさい)から習(なら)い始(はじ)めたピアノを今(いま)も続(つづ)けている。
I started playing the piano at age eight and still continue with it today.
八歳(はっさい)といえば、日本(にほん)では小学校(しょうがっこう)二年生(にねんせい)にあたる年齢(ねんれい)だ。
Eight years old is the age of a second grader in elementary school in Japan.

Composed of 八(はっ) (eight) and the age counter 歳(さい) (also written 才(さい)). The number 八(はち) undergoes promotion to はっ before さい, producing the sokuon (small つ) pronunciation はっさい rather than はちさい.

Usage

Routine vocabulary for stating ages. The counter 歳(さい) is used for human and animal ages; in casual writing and on children's products, the simpler 才(さい) is often substituted. Ages are typically asked with 何歳(なんさい)ですか (How old are you?) or the politer おいくつですか. With the copula, one says 八歳(はっさい)だ・です.

Common collocations

Similar words

  • 七歳(ななさい): seven years old — the age before
  • 九歳(きゅうさい): nine years old — the age after
  • 満(まん)八歳(はっさい): fully eight years old (completed years) — used on official forms
  • 数(かぞ)え八(はっ)歳(さい): eight by traditional counting — the older system where one is 1 at birth and gains a year at New Year
general
Added 2026.4.14 3:11 · Revised 2026.9.2 13:02
23500/23652_hassai