This is the 7624th most frequent Japanese word.
力強
The Japanese word "力強" (rikidzuyo) means "strong" or "powerful."
Adjective '力強い (Chikara-zuyoi)' is used here to describe the quality of the speech, implying it was compelling and impactful.
彼は力強い演説をしました。
He gave a powerful speech.
Adverb '力強く (Chikara-zu-yoku)' is utilized to describe the manner of pushing, indicating the necessity of applying force.
力強く押すと扉は開きます。
Push strongly, and the door will open.
Noun '力強さ (Chikara-zuyosa)' is used here to describe the concept of strength or power being a central theme in the painting.