interrelate
Everything is interrelated, and a clean environment means clean, healthy communities.
The book is a collection of interrelated pieces on modern travel.
All of these problems are interrelated.

SMART Vocabulary: related words and phrases

Linking and relating
affiliated
AL
appertain to something
applicable
around
attach
collateral
equation
interconnect
interconnected
interconnectedness
interconnection
intercorrelate
relatability
relatable
relate
relate to someone/something
relatedly
relation
tar

interrelated | American Dictionary

interrelated
adjective
us/ˌɪn·tə·rɪˈleɪ·t̬ɪd/
connected in such a way that each thing has an effect on the others:
He saw all aspects of society as interrelated.