利きき

noun

effectiveness; efficacy

General term for how well something works, especially medicine, treatments, or methods. 効き is common for medicinal contexts.

• この薬くすりはよく効ききが現あらわれる。

  This medicine shows its effectiveness quickly.

• 新あたらしい治ち療りょう法ほうの効ききを確たしかめる。

  Check the efficacy of the new treatment.

noun, used as a suffix, noun, used as a prefix

dominance (of hand, eye, etc.)

Only when written 利き

Used as a prefix or suffix to indicate which side is dominant, e.g., 利き手 (dominant hand), 右利き (right-handed).

• 私わたしは右みぎ利ききなので、右みぎ手てで字じを書かく。

  I'm right-handed, so I write with my right hand.

• 利きき目めを調しらべる簡かん単たんなテストがある。

  There's a simple test to check your dominant eye.

noun

tasting (alcohol, tea, etc.)

Only when written 利き

Refers to the act of tasting to judge quality, often used in contexts like sake tasting (利き酒) or tea tasting (利き茶).

See also: 聞き (きき)

• 彼かれは利きき酒ざけの達たつ人じんだ。

  He is a master of sake tasting.

• 利きき茶ちゃの会かいに参さん加かした。

  I participated in a tea tasting event.