Grammar Info

N4 Lesson 5: 17/20

は～の一(ひと)つだ

〜 is one of (many) 〜

Structure

Noun (A) + は + (Category) Noun (B) + の一つ + だ

Details

  • Register

    Standard

  • 使用域

    一般

About ～は～の一つだ

In order to express that something is only one thing from within a larger category, the construction ～は～の一(ひと)つだ will be used. In this expression, (A), the thing that there is one of, will be followed by は. After this, (B) + の一(ひと)つだ will highlight the broader category to which (A) belongs.
  • アンドロイドはスマートフォンのOSの一(ひと)つだ。
    Android is one of (many) smartphone operating systems.
  • 電車(でんしゃ)は乗(の)り物(もの)の一(ひと)つです。
    Trains are one of (many) vehicles.
In this grammar point, の一(ひと)つ is a standard counter. This means that other counters can and will be used, when they are more appropriate than 一(ひと)つ.
  • 彼(かれ)も家族(かぞく)の一人(ひとり)だ。
    He is also one member of my family.
  • トマトはフルーツの一種(いっしゅ)だ。
    Tomatoes are one of many types of fruits.
  • このクレヨンはこのセットの一本(いっぽん)だ。
    This crayon is part of this set.

Examples

  • ホンダは車(くるま)のメーカーの一(ひと)つだ。

    Honda is one of (many) car makers.

    • アイフォンはスマートフォンの一(ひと)つだ。

      iPhone is one of (many) smartphones.

      • 文法(ぶんぽう)は大事(だいじ)な勉強(べんきょう)の一(ひと)つです。

        Grammar is one of (many) important things to study.

        • コカコーラはコーラの一(ひと)つだ。

          Coca-cola is one of many colas.

          • 寿司(すし)は日本(にほん)の有名(ゆうめい)な食(た)べ物(もの)の一(ひと)つだ。

            Sushi is one of many famous Japanese foods.

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            ～は～の一つだ – Grammar Discussion

            Most Recent Replies (3 in total)

            • Johnathan-Weir

              Johnathan-Weir

              Other than 一つ and 一人 which are given examples here could you use other counters such as 一匹 like so:

              「猫は有名なペットの1匹です。」
              “Cats are one of many popular pets.”

              And so on with other counters relevant to subject or would you just stick with 一つ and 一人?

            • mrnoone

              mrnoone

              Hey

              Other counters can be also used that way, though つ is the most common one.

              この動物はネコ科の一種です。
              This animal is one of the feline spieces.

              Cheers,

            • Ambo100

              Ambo100

              Please consider mentioning that in the notes for this. I tend to check every forum discussion thread as I learn new grammar in case I miss helpful things like this.

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