コツ

こつ
noun
knack; trick; key (to doing something)
1. knack; trick; key; secret (to doing something well)
The essential technique or insight needed to do something well. The key skill or approach that makes a task easier once understood.
料理(りょうり)のコツを(おし)えてください。
Please teach me the trick to cooking this.
コツをつかめば、簡単(かんたん)にできる。
Once you get the hang of it, it's easy.
成功(せいこう)のコツは継続(けいぞく)すること だ。
The secret to success is to keep going.

COMMON EXPRESSIONS:

  • コツをつかむ (to get the hang of something)
  • コツを(おぼ)える (to learn the knack)
  • コツを(おし)える (to teach the trick)
  • 〜のコツ (the key to/the trick for ~)

WRITING:
Usually written in katakana as コツ. Sometimes written as (こつ) (literally "bone"), but this is less common.

USAGE EXAMPLES:

  • 上達(じょうたつ)のコツ (the key to improvement)
  • 節約(せつやく)のコツ (the trick to saving money)
  • コミュニケーション(こみゅにけーしょん)のコツ (the secret to good communication)

NUANCE:
コツ implies that there's something specific—a technique, approach, or insight—that, once grasped, makes a task much easier. It's often something that isn't obvious but can be taught or discovered through experience.