Sentience

Sister Corvin wrote a thesis entitled "The Echo of Life", concerning the migration of sentience. (TV: New Earth)

As recalled by Kenossium, the Moment was a weapon so powerful that its operating system became sentient. (TV: The Day of the Doctor)

The Headless Monks payed Dorium Maldovar in sentient money. (TV: Prequel (A Good Man Goes to War))

House was a sentient asteroid. (TV: The Doctor's Wife)