筋肉

きんにく

muscle, sinews

JLPT N3

Character Breakdown

Understanding 筋肉 (きんにく)

筋肉 means "muscle" and refers to the tissues in the body responsible for movement and strength. It is commonly used in everyday conversation about fitness, health, and body condition.

Common Contexts

You will often hear 筋肉 in contexts related to exercise, muscle pain, or physical appearance. For example, people talk about 筋肉痛 (muscle pain) after working out or how 筋肉がつく (muscles develop) through training.

Collocations and Patterns

  • 筋肉を鍛える: to train or build muscles, used when talking about exercise routines.
  • 筋肉痛: muscle soreness or pain, common after physical activity.
  • 筋肉がつく: muscles develop or grow, often used to describe physical changes.

Usage Notes

筋肉 is a neutral term and can be used in both casual and formal situations. When describing muscle pain, 筋肉痛 is the standard expression. Avoid confusing 筋肉 with 骨 (bone) or 皮膚 (skin), as these refer to different body parts.

Common Mistake

Learners sometimes confuse 筋肉 with general body strength or stamina. 筋肉 specifically refers to the muscle tissue itself, not overall physical fitness or endurance.

Example Sentences

まいにちうんどうしてきんにくをきたえています。

I exercise every day to build my muscles.

きんにくつうでうでがうごかしにくいです。

My arm is hard to move because of muscle pain.

きんにくがつくとからだがひきしまってみえます。

When you gain muscle, your body looks toned.