やく

やく

"やく" can mean "approximately," "about," "role," or "use," depending on context.

Here, 'やく' reflects a considerable change or transformation, employed in '大きくやく'.

この試験に合格することで私のキャリアが大きくやく変わりました。

Passing this exam greatly changed my career.

Here, 'やく' implies a metaphorical result or improvement in skill, used as 'やくほど'.

毎日料理をすることで料理の腕がやくほどに上達しました。

By cooking every day, my cooking skills improved significantly.

In this sentence, 'やく' indicates a noteworthy advancement or improvement in health, as used in 'いいやく'.

たばこを辞めると健康にいいやく進歩します。

Stopping smoking significantly advances one's health.