How to say "tyrant" in Japanese

• 暴君ぼうくんCommon
  nounCovers 'tyrant' in its literal sense: a ruler who wields power cruelly and oppressively; a despot. Typical context: history or politics — a harsh sovereign who oppresses his people.
  このようにして、暴君ぼうくんはその王国おうこくの征服せいふくに成功せいこうした。↗

  Thus, the tyrant succeeded in conquering the kingdom.
• ワンマンCommon
  na-adjective, no-adjectiveCovers the figurative 'tyrant': a dictatorial person who, true to the loanword 'one-man', tries to decide everything single-handedly. Think of a domineering company boss or coach rather than a reigning despot.

Use 暴君 for a tyrant in the political sense — a cruel, oppressive ruler or despot — and 「ワンマン」 for a dictatorial person, a bossy 'one-man' figure who dominates a group or workplace like a tyrant.

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

• 暴君ぼうくんtyrant
• タイラントtyrant
• 圧制者あっせいしゃoppressor
• 僭主せんしゅusurper
• 専制君主せんせいくんしゅabsolute monarch
• ワンマンtyrant