# riprap

> English word · Noun · IPA /ˈɹɪpɹap/

## Definitions
1. An underwater bank seen as a danger to shipping.
2. Rocks or other materials used to shore up an embankment, deter or prevent erosion, guide shipping, or serve as a temporary mooring.

## Etymology
Apparently a reduplication (with vowel dissimilation) of rap (“blow, stroke”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/riprap