Intelligence

noun

1. Capacity of mind, especially to understand principles, truths, facts or meanings, acquire knowledge, and apply it to practice; the ability to comprehend and learn.
2. An entity that has such capacities.
3. Information, usually secret, about the enemy or about hostile activities.
4. A political or military department, agency or unit designed to gather information, usually secret, about the enemy or about hostile activities.
5. Acquaintance; intercourse; familiarity.