Thrall/θrɔːl/ Definition 1 of 2Pro Tip 1/3Control and Freedom Use 'thrall' to express lack of freedom due to control by others or things, like addictions. He spent years in thrall to gambling. Pro Tip 2/3Archaic Tone 'Thrall' is old-fashioned; it can give a historical or literary feel to your writing or speech. The knights were released from their thrall. Pro Tip 3/3Not for People Be careful not to use 'thrall' insensitively when referring to actual people who are enslaved. His mind was in thrall to the haunting melody.