IPA: /ˈrɪŋwɜːrk/
KK: /rɪŋwɜrk/
A type of defensive structure that is usually circular or oval, used for protection, similar to a castle but without the raised earth mound.
The archaeologists discovered an ancient ringwork that once served as a stronghold.
Ringwork → The word is formed from "ring" (from Old English "hring", meaning a circular band) and "work" (from Old English "weorc", meaning something made or constructed). A ringwork refers to a type of fortification that is circular in shape, constructed as a defensive structure.
Think of a 'circular band' ('ring') that is 'constructed' ('work') to create a defensive structure. This helps you remember that a ringwork is a circular fortification.