This is the 9979th most frequent Japanese word.
踏みこん
"踏み込ん" (fumikon) means "to step into" or "to delve into," often implying entering deeply or intrusively into a place, situation, or subject.
The word "踏み込ん" here is used to describe the act of stepping into or addressing a situation or topic thoroughly and cautiously.
彼は慎重にその問題に踏み込んだ。
He carefully delved into that issue.
In this sentence, "踏み込む" implies literally stepping into a physical area, emphasizing motion towards a place.
危険なエリアに踏み込むのは避けるべきです。
You should avoid stepping into dangerous areas.
Here, "踏み込む" is used metaphorically to denote intruding or imposing into personal or sensitive boundaries.