What is Exemption?

Legal Definition
In the Roman Catholic Church, exemption is the whole or partial release of an ecclesiastical person, corporation, or institution from the authority of the ecclesiastical superior next higher in rank, such as the Roman Catholic Archdiocese of Strasbourg, directly subject to the Holy See.
-- Wikipedia
Legal Definition
A privilege which dispenses with the general rule; for example, in Pennsylvania, and perhaps in all the other staies, clergymen are exempt from serving on juries. Exemptions are generally allowed, not for the benefit of the individual, but for some public advantage.
-- Bouviers Law Dictionary
Legal Definition
Freedom from a general duty or service; iminunity from a general burden, tax or charge. Green v. State, 59 Md. 128, 48 Am. Rep. 542; Koenig v. Railroad Co., 3 Neb. 380; Long v. Converse, 91 U. S. 113, 23 In Ed. 233. A privllege allowed by law to a judgment debtor, by which be may hold property to a certain amount, or certain classes of property, free from all liability to levy and sale on execution or attachment Turrill v. McCarthy, 114 Iowa, 681, 87 N. W. 667; Williams v. Smith, 117 Wis. 142, 93 N. W. 464.
See also
-- Black's Law Dictionary
Legal Definition
Immunity from military service or jury duty. See 59 Md. 123, 43 Am. St. Rep. 542; a release from some burden, duty or obligation. 93 Me. 586, 49 L. R. A. 294, 45 Atl. 830..
-- Ballentine's Law Dictionary