How to Say “Part” in Japanese: A Comprehensive Guide

In the Japanese language, expressing the concept of “part” can vary depending on the context, formality, and region. In this guide, we will explore various ways to say “part” in Japanese, both formally and informally. Additionally, we will provide you with valuable tips, examples, and insights. Let’s delve into the rich vocabulary of “part” in Japanese!

Formal Ways to Say “Part”

When opting for a formal tone, you can use several terms to convey the meaning of “part.” Here are some commonly used formal expressions:

  1. 部分 (ぶぶん – bubun): This is the most general and versatile term for “part” in Japanese. It is polite and can be used in most situations. For instance, you can say “この部分を直してください” (Please fix this part).
  2. 一部 (いちぶ – ichibu): When you want to refer to a specific part or section, “一部” is a suitable choice. For example, you can say “この一部だけ赤いです” (Only this part is red).
  3. 断片 (だんぺん – danpen): This term denotes something fragmented or broken into pieces, making it ideal when discussing broken parts or fragments. You can say “そのガラスの断片が危ないです” (Those glass fragments are dangerous).
  4. 要素 (ようそ – youso): “要素” refers to an essential or constituent part, making it appropriate when discussing elements or components. An example sentence would be “この要素を変更してください” (Please change this element).
  5. 部位 (ぶい – bui): This term specifies an anatomical or structural part, making it suitable for medical or technical contexts. For instance, you can say “頭部の痛み” (headache) to refer to a pain in the head region.

Informal Ways to Say “Part”

In informal situations, you will often find different expressions for “part.” These informal terms are commonly used in daily conversations with friends, family, or colleagues. Let’s explore some informal options:

  1. パート (paato): Borrowed from English, this term is frequently used in casual conversation to refer to a part-time job. It can also be used informally as a general term for “part.” For instance, you can say “このパートが欠けている” (This part is missing).
  2. ポイント (pointo): Another borrowed word, “ポイント” is commonly used in casual contexts to refer to a specific point or part. It can be used interchangeably with “部分” in some cases. For example, you can say “このポイントは大切です” (This point is important).
  3. 一部分 (いちぶぶん – ichibubun): Adding “部分” to “一部” gives it a more informal tone with a slight emphasis. You can use it to refer to a part or section in a casual setting. An example sentence would be “この一部分が好きだよ” (I like this part).
  4. パーツ (paatsu): This term, derived from English, is often used colloquially to refer to mechanical or electronic parts, particularly in hobbies or technology-related conversations. For instance, you can say “新しいパーツを手に入れた” (I acquired new parts).

Tips for Using “Part” in Japanese

To ensure you effectively use the appropriate terms for “part” in Japanese, here are some tips and additional insights:

TIP 1: Consider the context: The choice of term depends heavily on the context. Always consider the situation, whether formal or informal, and choose the appropriate expression accordingly.

TIP 2: Familiarize yourself with kanji: Some expressions, such as “部分” or “断片,” can be written using kanji characters. Learning kanji can enhance your understanding and communication in Japanese.

TIP 3: Be aware of regional variations: The expressions covered in this guide are widely used across Japan. However, some regional dialects may have unique or alternative ways of expressing “part.” If you encounter a regional variation, feel free to embrace it and learn about its cultural nuances.


In Japanese, conveying the notion of “part” relies on various terms that offer formal and informal options. By mastering these expressions, such as “部分,” “一部,” “断片,” or “パート,” you can confidently discuss different parts in Japanese conversations with appropriate levels of formality. Remember to consider the context, familiarize yourself with kanji, and embrace regional variations when encountered. Enjoy expanding your vocabulary in the fascinating world of Japanese!

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