Noun

1. Something twisted, intertwined, or curled.

   a wreath of smoke

   a wreath of clouds

2. An ornamental circular band made e.g. of plaited flowers and leaves, and used as decoration; a garland; a chaplet, esp. one given to a victor.
3. An appendage to the shield, placed above it, and supporting the crest. It generally represents a twist of two cords of silk, one tinctured like the principal metal, the other like the principal color in the coat of arms.

Verb

1. To place an entwined circle of flowers upon or around something.
2. To wrap around something in a circle.

   At the funeral, a circle of comrades wreath the grave of the honored deceased.