also: せいこうのカギ
key to success; key success factor
A set phrase meaning the crucial element or factor that leads to success.
努力こそが成功の鍵だ。
Effort is the key to success.
このプロジェクトの成功の鍵はチームワークです。
The key to this project's success is teamwork.
Standard kanji spelling.
Katakana spelling for emphasis or stylistic effect.
Compound of 成功 (success) + の (possessive particle) + 鍵 (key). A straightforward metaphorical phrase.