Definition of transitions:
(n) :
The process of change from one form, state, style or place to another.
(n) :
A word or phrase connecting one part of a discourse to another.
(v) :
(intransitive) To make a transition.
(v) :
(transitive) To bring through a transition; to change.
(n) :
(LGBTQ) The process or act of changing one's gender role or physical and sexual characteristics, by social, medical, or legal methods, to conform to their identified gender, rather than the sex assigned at birth.
(n) :
(medicine) The onset of the final stage of childbirth.