IPA: /ˈpɒndwiːd/
KK: /ˈpɒndˌwiːd/
A type of aquatic plant that grows in water, often with long stems and leaves that can float or be submerged, and produces small flowers.
The pond was filled with green pondweed, providing a habitat for fish and other wildlife.
Pondweed is formed from "pond" (from Old English *pond*, meaning a small body of water) and "weed" (from Old English *wēod*, meaning a plant or herb). The word refers to a type of plant that grows in or near a pond.
Think of a 'small body of water' ('pond') where a 'plant' ('weed') grows — that's what pondweed is.