being fully deaf

understanding, comprehension / appreciation

sign language

to use / to employ / to make use of, to apply / to spend

deafness / deaf

understand, comprehend / appreciate

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

entire, complete, overall