Relations in Editing

The main phrase when talking about relations in editing is GRAPHIC MATCH.

GRAPHIC MATCH is achieved by joining two shots with matching things in the background.

Rhythmic Transitional devises:

Fade-out
Fade-in
wipe
Straight cut
Flip frame
Jump cut
Dissolve

There's another phrase called :Temporal Relations.

Temporal relations meaning chronological

Most narrative films are presented in roughly chronological order with notable exceptions.
The two most common disruptions to chronological order are flashbacks and flaskforwards.