英和和英

The relation is complicated.

be relevant to

with relevance

the state of being connected

be in a relationship with

a cooperative relationship

the act of forming into groups

the condition of having a connection with something

the state of being associated with something

in a relative manner

related by an isometry

the continuity of a relevant thing

related by marriage

have smooth relations

related by blood

each component in a mutual relationship

a person who is involved and/or has a relation to something

of a relationship, the state or quality of intimacy

each of the connecting parts of something

relevant and appropriate

of the relation between two {matters} or people, being slight

There is a correlation between them.

have relation to…

having crucial relevance

the state of a series of things becoming connected or related

related on the father's side

Mind and body are interdependent on each other.

a batch of things that go together

a connecting shape

to be related to development