n. 25B6; noun
I stayed for a day : TWENTY-FOUR-HOUR PERIOD, twenty-four hours.
enjoy the beach during the day : DAYTIME, daylight; waking hours.
the leading architect of the day : PERIOD, time, age, era, generation.
in his day he had great influence : HEYDAY, prime, time; peak, height, zenith, ascendancy; youth, springtime, salad days.
diurnal.
night, decline.
25A0; day after day REPEATEDLY, again and again, over and over (again), time and (time) again, frequently, often, time after time; {day in, day out}, night and day, all the time; persistently, recurrently, constantly, continuously, continually, relentlessly, regularly, habitually, unfailingly, always; N. Amer. oftentimes; informal 24-7; poetic/literary oft, oft-times.
25A0; day by day
day by day they were forced to retreat : GRADUALLY, slowly, progressively; bit by bit, inch by inch, little by little, inchmeal.
they follow the news day by day : DAILY, every day, day after day; diurnally.
25A0; day in, day out . See day after day .