all day long; all the day; throughout the day
the whole day; all the day
first day (e.g. at work, school); day one
11th day of the month; 11 days
21st day of the month; 21 days
31st day of the month; 31 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
chief for the day (PR event in which a celebrity heads a police, fire, etc. department for a day)
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