That's tight-knit.
[Slang] THAT'S TIGHT-KNIT. - Discover How to Describe Strong Bonds in English
Close relationship.
That's tight-knit" refers to a group of people who are closely connected or bonded. Imagine a sweater so well-knit that you can't see any gaps between the yarns; that's how close the relationships within a tight-knit group are — very cohesive and strong.
Example Sentences
Their family is really tight-knit; they support each other no matter what.
Their family is very close and supportive.
This community is so tight-knit, everyone knows each other.
This community is so close-knit that everyone is familiar with each other.
A tight-knit team like ours is the key to successful projects.
Having a close-knit team is essential for successful projects.