1. (noun)wrack dried seaweed especially that cast ashore Synonyms: rack, sea wrack
2. (noun)wrack, rack the destruction or collapse of something Synonyms: wrack, rack, stand, sea wrack, wheel, single-foot
3. (verb)sea wrack, wrack growth of marine vegetation especially of the large forms such as rockweeds and kelp Synonyms: wrack, grass wrack, eelgrass, sea wrack, rack