How to say "leader" in Japanese

Choosing the right word
  • nounThe default, all-purpose word for a leader of a group, team, or organization. When you simply mean 'the leader' without any special nuance, this loanword is the safe choice.
    Japan is a leader in the world's high-tech industry.
  • nounCovers the captain-of-a-team sense: the leader of a sports team. It is heard especially in baseball, where it refers to the team's captain, and is not a general word for leaders.
  • 主ぬしCommon
    nounPrimarily the head of a household or the master of a place; for the ordinary sense of 'leader' of a group or organization it is marginal, and another word is usually the right choice.
  • ボスCommon
    nounAn informal loanword for the boss of a group — the person in charge. It often suggests a gang boss or the dominant figure in a small circle rather than a formally appointed leader.
    まるでボスのような話し方はなしかたをする。↗
    You talk as if you were the boss.
  • 首脳しゅのうJLPT N1approx.Common
    nounRefers to the top leadership of a government, party, or large organization — the people at the very top. Typical of news and formal writing, not the word for a leader at an ordinary level.
    7カ国かこくの首脳しゅのうがその会議かいぎに出席しゅっせきした。↗
    The top leaders of seven countries attended the meeting.

Use 「リーダー」 as the all-purpose word for a leader; 「キャップ」 for a team captain, 「ボス」 informally for a boss-type figure, 主 for the head or master of a household or place, and 首脳 for top organizational or governmental leadership.

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