all day long;  all the day;  throughout the day
 all day long;  all the day;  throughout the day
 the whole day;  all the day
 first day (e.g. at work, school);  day one
 eleventh day of the month;  eleven days
 twenty-first day of the month;  twenty-one days
 thirty-first day of the month;  thirty-one days
 gradually;  day by day;  every day;  each day
 slight superiority (in knowledge, experience, ability, etc.);  being slightly older
 (waiting) impatiently;  (spending) many a weary day;  each moment seeming like an eternity
 doing a good deed each day;  doing one good turn a day
 without intermission for ten (long) years;  with constancy of purpose for ten (long) years;  in the same old rut for years on end
 Rome was not built in a day
 (waiting) impatiently;  (spending) many a weary day;  each moment seeming like an eternity
 as soon as possible;  without further delay
 tolerable daily intake;  TDI
 a day in life is better than a thousand days in the afterlife;  better one day in this world than a thousand in the next