yesterday

The day before the present day.

Time in the past, especially the recent past.

On the day before the present day.

A short while ago.

The day last past; the day next before the present: often used figuratively for time not long gone by; time in the immediate past.

On the day preceding this day; on the day last past.

On the day last past; on the day preceding to-day.

The day last past; the day next before the present.

Fig.: A recent time; time not long past.

The day before today. ‘Today is the child of yesterday and the parent of tomorrow’. It can also understand as a day ago.