say it: SANGK-tuh-fahy
sanctify is a verb meaning "render holy by means of religious rites". It carries 2 recorded senses.
render holy by means of religious rites
make pure or free from sin or guilt
“he left the monastery purified”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sanctify come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.