Word 19 of 20 · Level 63

効くきくkikuto be effective

Synonyms:to be effectiveto workto be good for

Example sentence

この薬くすりはよく効ききます。

This medicine works well (is effective).

How 効く is used

効きく means to be effective, to work, or to function well. It is commonly used for medicines, brakes, or any method that produces the desired result.

More words from level 63

使用shiyouusage
告白kokuhakuconfession
舐めるnameruto lick
潰すtsubusuto crush
含めるfukumeruto include
時期jikitime, season

All 20 words in level 63: The Unread Letter

See 効く again before you forget it.

That is how Fuguro works. It brings 効く back for review right before you forget it, each time a little later, until it sticks for good. You hear it spoken aloud, and you meet it again in stories you can already read. The first five levels are free.

Start Learning Free