威力

いりょく

power, might, authority

JLPT N1

Character Breakdown

Understanding 威力 (いりょく)

"威力" refers to power, might, or authority, often emphasizing the strength or effectiveness of something. It is commonly used in contexts involving physical strength, influence, or potency.

Usage and Nuance

When you use "威力," you imply a strong force or impact, whether literal (like an engine or medicine) or figurative (like someone's words or authority). It often conveys a sense of impressive or overwhelming strength.

Common Collocations

  • 威力を持つ (いりょくをもつ): to have power or strength
  • 強い威力 (つよいいりょく): strong power or potency
  • 威力を発揮する (いりょくをはっきする): to demonstrate or exert power

These phrases are useful when describing the effectiveness or influence of objects, people, or actions.

Register and Formality

"威力" is a formal word often found in written language, news reports, or formal speech. It is less common in casual conversation but understood by all levels.

Common Mistake

Learners sometimes confuse "威力" with "力" (ちから), which simply means "power" or "strength." "威力" carries a stronger nuance of forcefulness or authority, so use it when you want to emphasize impactful power rather than just general strength.

Example Sentences

このあたらしいえんじんはひじょうにつよいいりょくをもっている。

This new engine has very strong power.

かれのはつげんはおおきないりょくをもって、かいぎのながれをかえた。

His statement had great authority and changed the course of the meeting.

このくすりはつよいいりょくがあるので、ようほうをまもってつかってください。

This medicine has strong potency, so please use it according to the instructions.