Intimately (Adverb)

With great or especially intimate knowledge; "we knew them well".

She understood the intricacies of the business intimately, having worked there for over a decade.
The detective knew the suspect's alibi intimately, having spent hours questioning him.
The artist knew the city's streets intimately, having spent years exploring its hidden corners.
The chef knew the flavors of the dish intimately, having perfected the recipe over years of experimentation.
The musician knew the composer's work intimately, having spent years studying and performing his pieces.

In a close manner; "the two phenomena are intimately connected"; "the person most nearly concerned".

The patient's condition was intimately linked to their dietary habits and exercise routine.
She is intimately involved in the development of the company's new product line.
His upbringing was intimately tied to his subsequent success in business.
Their futures are intimately entwined as they prepare for their joint business venture.
He knew his children intimately, which helped him tailor his parenting style to each child's needs.