noun
Refers to cunning means or tactics used to deceive someone. Often implies sly or underhanded methods.
彼は手練を使って相手を騙した。
He used trickery to deceive his opponent.
The exact derivation is uncertain. The kanji 手 (hand, means) and 練 (practice, knead) suggest 'practiced means', but the word is conventionally associated with deception.