1With the. The day of the Last Judgement, the end of the world.

2In plural Usually with the. The period including and immediately preceding the Last Judgement or end of the world.

3With possessive. The day of a person's death.

4In plural, with the and of. The concluding period in a person's life, or in the history or duration of an institution, a city, etc.

5With or †without the. Yesterday. Now Scottish regional.