1. subst. Something hung up or spread out to hide or protect the face, or hide an object from view; usually of gauze, crape, or similar diaphanous material.
2. subst. A cover; disguise; a mask; a pretense.
3. subst. The calyptra of mosses.
4. subst. A membrane connecting the margin of the pileus of a mushroom with the stalk; a velum.
5. subst. A covering for a person or thing; as, a caul (especially over the head)
a nun's veil
a paten veil
an altar veil
Muslim woman often cover their face with a veil.
6. subst. (zoology) velum (A circular membrane round the cap of medusa)
7. subst. (mycology) A thin layer of tissue which is attached to or covers a mushroom.
8. subst. An obscuration of the clearness of the tones in pronunciation.
9. v. To dress in, or decorate with, a veil.
10. v. To conceal as with a veil.
The forest fire was veiled by smoke, but I could hear it clearly.