Home › Words › L › lakeweedlakeweedlakeweed means the water pepper, an aquatic plant of the family Polygonaceae.EtymologyFrom lake + weed.nounThe water pepper, an aquatic plant of the family Polygonaceae.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.hydropiper 72% match — Water pepper; a knotweed of species Persicaria hydropiper (formerly Polygonum hydropiper). vs lakeweed →pickerelweed 67% match — Any of several freshwater plants, of the genus Pontederia, that have heart-shaped leaves vs lakeweed →arsesmart 67% match — A water pepper plant, of species Persicaria hydropiper (formerly Polygonum hydropiper). vs lakeweed →wireweed 66% match — Any member of the genus Polygonella, now included in genus Polygonum of knotweeds and smartweeds, especially Polygonella articulata, now Polygonum articulatum. vs lakeweed →brookweed 65% match — A small white-flowered herb (Samolus valerandi) usually found in wet places; the water pimpernel. vs lakeweed →pondweed 65% match — Any of several plants that grow in ponds or similar aquatic conditions:; Potamogeton, a diverse and worldwide genus vs lakeweed →waterweed 65% match — Any of several aquatic herbs of the genus Elodea. vs lakeweed →duckweed 63% match — Any of several reduced floating aquatic plants in the subfamily Lemnoideae of the family Araceae. vs lakeweed →