wrack¹ /rak/

1. Vengeance, punishment (obsolete)
2. Destruction, devastation (cf rack²)
3. What remains after devastation, a remnant (in Shakespeare, Tempest IV.1.156, an erroneous alteration of rack; see rack⁶)

wrackˈful adjective (rare)

Destructive

wrack² /rak/

1. A wreck (dialect)
2. Wreckage
3. Seaweed cast ashore, or growing where it is exposed by the tide (archaic)
4. Any of the Fucaceae, the bladderwrack family of seaweeds

wrack³ /rak/

To torture, torment

• knock-knee
• knock-kneed
• knock-knees
• knock off
• knock on
• knock-on
• knock-on effect
• knock one's head against a brick wall
• knock on the head
• knock on wood
• knock out
• knockout
• knockout auction
• knockout auctions
• knockout drops
• knockouts
• literary source
• literate
• literately
• literates
• literati
• literatim
• literation
• literations
• literato