exemption

英[ɪɡ'zempʃn] 美[ɪg'zɛmpʃən]

1. immunity from an obligation or duty

2. a deduction allowed to a taxpayer because of his status (having certain dependents or being blind or being over 65 etc.);

"additional exemptions are allowed for each dependent"

3. an act exempting someone;

"he was granted immunity from prosecution"