How to say "duty" in Japanese

Choosing the right word
  • 責任せきにんJLPT N3approx.Common
    nounCovers duty as responsibility — being answerable for a task or for supervising staff. Choose it when 'duty' means accountability you bear, as in a manager's responsibility for her team's work.
  • 義務ぎむJLPT N3approx.Common
    nounDuty as obligation — something you must do by law, morality, or your role. It fits civic and legal duties, like the duty to vote or obey the law.
    このような義務ぎむがあるなんて知しらなかった。↗
    I never knew about such a duty.
  • 税金ぜいきんJLPT N3approx.Common
    nounOnly for duty as a tax — money paid to the government, such as customs duty on imports. For any other sense of 'duty' it is seldom the word you want; it really just means tax.
    新あたらしい税金ぜいきんがワインにかせられた。↗
    A new tax was imposed on wine.
  • 勤務きんむJLPT N1approx.Common
    noun, suru verb, intransitive verbDuty as service at work — the time you spend on duty at a job. It fits contexts like being on duty at a hospital, office, or station.
    その警備員けいびいんは一いち晩ばん中ちゅう勤務きんむだった。↗
    The guard was on duty all night.
  • 任務にんむJLPT N1approx.Common
    nounDuty as an assigned mission or task — the job you are charged with carrying out. Typical of military, police, or rescue contexts, and of the specific duties attached to a post.
    彼女かのじょはその党とうの指導しどう的てき任務にんむにつくことを承認しょうにんした。↗
    She has consented to take the leadership of the party.

For duty as obligation use 義務, as responsibility or charge over staff use 責任, as work service use 勤務, as an assigned mission use 任務, and as a tax or customs duty use 税金.

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