How to say "root" in Japanese

Choosing the right word
  • 根ねJLPT N3approx.Common
    nounThe basic word for the root of a plant or tree, the part that grows under the ground. Use it in literal, botanical contexts such as pulling up a weed by the roots.
  • 根本こんぽんJLPT N1approx.Common
    nounThe figurative root of something: the source or origin of a problem, trouble, or an idea. For 'the root of the problem', this is the usual choice.
    想像力そうぞうりょくは、すべての文明ぶんめいの根本こんぽんである。↗
    Imagination is the root of all civilization.
  • 根源こんげんCommon
    nounAlso figurative, but with a deeper, more abstract feel: the root, source, or cause of things like evil, desire, or fear. Think of the ultimate origin from which something springs.
    金きんは諸悪しょあくの根源こんげん。↗
    Money is the root of all evil.
  • 根っこねっこCommon
    nounCovers the same sense as 根 — the actual roots of a plant — with a softer, more familiar feel. Natural in everyday talk about weeds, flowers, or roots sticking out of the soil.
  • 付け根つけねCommon
    nounNot a plant root: this is the point where something joins the body — the root of the hair, the base of the thigh or arm. Also covers the groin area.
    彼女かのじょは耳みみのつけ根ねまで赤あかくなった。↗
    She colored up to her temples.

Use 根 or 「根っこ」 for plant roots, 根本 or 根源 for the figurative root or source of problems, and 「付け根」 for the point where a body part or hair joins the body.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android