隔阂 (gé hé): misunderstanding; estrangement; (language etc) barrier

Because of a misunderstanding, a rift developed between them, and they no longer talked about everything like before.

After the parents divorced, a gap gradually formed between the child and the father, and they always seemed distant when they met.

After the new manager took office, he took the initiative to chat and eat with the employees, and soon eliminated the estrangement between them.

Although they live under the same roof, the long-term quarrels have created a deep rift between the couple.

After several honest conversations, the two brothers finally resolved their emotional knot and eliminated the estrangement that had lasted for years.