to polish, to brush / to improve, to refine (a skill)

day by day

every day, daily

day by day

every day, daily

a specific date / days

technology; technique; technical

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