Entirety (noun)

1. The state or quality of being entire; completeness.
2. The whole of something; everything.

Origin:

Middle english entierte, from old french entierté, from entier entire.

Examples:

1. She read the contract in its entirety before signing it.
2. The building was destroyed in its entirety by the fire.
3. I understand the project in its entirety.
4. He described the plan in its entirety.
5. We will discuss the budget in its entirety.