This is the 3672nd most frequent Japanese word.
yoshi
"Yoshi" can mean "good," "okay," or "alright" and is also a common Japanese given name.
In this sentence, "yoshi" acts as an interjection, expressing determination or readiness.
よし、今日は早く帰ろう。
Alright, let's go home early today.
Here, "yoshi" shows satisfaction or approval upon completing the task.
絵を描き終わって、「よし」と言いました。
I finished drawing the picture and said 'Yoshi.'
In this context, "Yoshi" is part of a proper noun, a name (Yoshiko).