world

specialist; expert

expert, special

epidemiology

global

to recognise, acknowledge / to acknowledge one's child despite being unmarried to the other parent, to formally recognise a child as one's own

recognition / acknowledgement of a child as one's own / cognition (in psychology)

speciality/specialty; subject of study; subject of expertise; area of interest; profession

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend