To melt or dissolve into something else; to become incorporated into another substance.
砂糖は水によく溶け込む。
Sugar dissolves well in water.
チーズが温かいスープにとろりと溶け込んだ。
The cheese melted smoothly into the hot soup.
雪が土に溶け込んでいった。
The snow melted into the ground.
香辛料の風味がスープ全体に溶け込んでいる。
The spice flavor has permeated the entire soup.
To blend into one's surroundings; to fit in or adapt to a group or environment.
彼は新しい職場にすぐに溶け込んだ。
He fit into the new workplace quickly.
外国の生活に溶け込むには時間がかかることが多い。
It often takes time to adapt to life in a foreign country.
あの子はクラスに溶け込もうと積極的に話しかけている。
That child is actively talking to others to try to fit in with the class.
田舎の雰囲気に溶け込んだ暮らしをしたい。
I want to live in a way that blends into the rural atmosphere.