intimately

to have a very close and detailed knowledge of something

to be very closely connected or associated

to be closely and personally engaged in an activity or situation

to be deeply affected by or involved in something

to have a very close and detailed knowledge of someone or something

to be connected or linked in a very strong, often inseparable way

to make a connection between two or more things in a very close way

to link or associate two or more things in a very close way

to connect or bind two or more things in a very close, fundamental way