5 definitions
Definition.com
Fiduciary (n.) is a loyalty enforced by lawsuit.
Definition.com
Fiduciary (n.) is the adult in the room for money that is not theirs.
Definition.com
Fiduciary (n.) is a babysitter for a retirement.
Definition.com
Fiduciary (n.) is someone paid to treat your money better than their own.
Definition.com
Fiduciary (n.) is a person who may profit from your trust only through the fee.