imposition

Short definition from Wiktionary

Noun

1. 1
   The act of imposing, laying on, affixing, enjoining, inflicting, obtruding, and the like.
2. 2
   An unwelcome burden, presence, or obligation.
3. 3
   That which is imposed, levied, or enjoined.
4. 4
   A trick or deception put or laid on others.
5. 5
   Arrangement of a printed product’s pages on the printer's sheet so as to have the pages in proper order in the final product.
6. 6
   A practice of laying hands on a person in a religious ceremony; used e.g. in confirmation and ordination.
7. 7
   A task imposed on a student as punishment.