- A mark or deformation of the ear of an animal, intended to indicate ownership.
- A mark for identification; a distinguishing mark.
- (US, politics) The designation of specific projects in appropriations of funding for general programs.
- (transitive, by extension) To specify or set aside for a particular purpose.
"You can donate to the organization as a whole, or you can earmark your contribution for a particular project."
- (transitive) To mark (as of sheep) by slitting the ear.