going underwater

to dive, to submerge

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

he; boyfriend

deep, profound

a breath / respiration / knack; the trick (to something)

breathe, respire

deep, close, thick, profound

deep, profound