To give all or a large part of one's time or resources to a person, activity, or cause. She decided to devote her life to helping the less fortunate.
To set apart or dedicate something (such as money, land, or efforts) for a particular use, purpose, or cause. The committee agreed to devote the extra funds to renovating the community center.
Archaic. To condemn or consign to destruction, catastrophe, or an adverse fate. In the legend, the oracle devoted the traitor's city to ruin.