day
noun
[ deɪ ]
• each of the twenty-four-hour periods, reckoned from one midnight to the next, into which a week, month, or year is divided, and corresponding to a rotation of the earth on its axis.
• "they only met a few days ago"
• a particular period of the past; an era.
• "in Shakespeare's day"
Origin:
Old English dæg, of Germanic origin; related to Dutch dag and German Tag .
day by day
• on each successive day; gradually and steadily.
• "day by day I grew worse"
Similar:
gradually,
bit by bit,
by degrees,
by stages,
inchmeal,
inch by inch,
little by little,
step by step,
slowly,
slowly but surely,
steadily,
progressively,
daily,
every day,
day after day,
a day at a time,
diurnally,
Opposite:
all at once,