To perform; to do; to conduct oneself; to carry out.

measurement, gauging

to measure

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

unit of measure / unit (an organized group) / academic credit

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

(archaic) antique, old-fashioned / (colloquial) ancient

ancient times, antiquity, remote ages