To hallow is to bless, consecrate, or render holy by means of religious rites, especially significant religious places or the relics of saints.

As a noun, hallow means "saint." The word for our popular holiday Halloween is a shortened form of "All Hallows' Eve," or "All Saints' Eve," which precedes All Saints' Day. In the verb form, the synonyms bless and sanctify are more commonly used these days, but hallow still appears in such phrases as "hallowed ground" (ground that's been blessed) and the Christian "hallowed be Thy name" (a phrase from "The Lord's Prayer," where hallowed means "revered").

Definitions of hallow

v render holy by means of religious rites

bless, consecrate, sanctify
deconsecrate, desecrate, unhallow
remove the consecration from a person or an object
consecrate anew, as after a desecration
Type of:
state emphatically and authoritatively

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.