DECLARATION OF TRUST. The act by which an individual acknowledges that a property, the title of which he holds, does in fact belong to another, for whose use he holds the same. The instrument in which the acknowledgment is made, is also called a declaration of trust; but such a declaration is not always in writing, though it is highly proper it should be so. Will. on Trust, 49, note y; Sudg. on Pow. 200. See Merl. Rep. Declaration au profit d'un tiers.