This is the 10018th most frequent Japanese word.
辣
"辣" means "spicy" or "pungent" in English.
辛 represents the concept of spiciness or heat in the flavor.
彼は辛い食べ物が好きです。
He likes spicy food.
辛 here represents feelings of hardship or difficulty in an abstract sense.
この問題はとても辛いです。
This problem is very challenging.
辛 conveys a sense of bitterness or harshness in expression.