Pronunciation: (sangk'tu-fī"),[key] —v.t.,-fied, -fy•ing. 1. to make holy; set apart as sacred; consecrate.
2. to purify or free from sin: Sanctify your hearts. 3. to impart religious sanction to; render legitimate or binding: to sanctify a vow. 4. to entitle to reverence or respect.
5. to make productive of or conducive to spiritual blessing.