A1 a period of 24 hours, especially from twelve o'clock one night to twelve o'clock the next night:

A2 used to refer to the period in 24 hours when it is naturally light:

A2 the time that you usually spend at work or at school:

F0 a day when you do not have to work, or do something that you normally do:

B1 a few days ago:

A2 used to talk about the present time, in comparison with the past:

B2 in the past:

B2 very soon, especially within the next few days:

F0 when it is naturally light:

B1 repeatedly, every day:

F0 all the time:

B2 every day, or more and more as each day passes:

F0 If something changes (from) day to day, it changes often:

C1 a period in history:

F0 up to and including the present moment: