What does floe mean?
A floe is a flat, sheetlike piece of ice floating on the surface of the sea or a body of fresh water. Floes range widely in size — from small fragments a few metres across to vast slabs spanning many kilometres — and they form as seawater freezes or as larger ice sheets break apart. In everyday English the word appears almost exclusively in discussions of polar regions, navigation, wildlife such as polar bears and seals that haul out on ice, and climate science, where changes in floe extent serve as indicators of warming. It most commonly occurs in the compound form "ice floe," and it carries strong associations of cold, remoteness, and precarious drifting. For writers and readers alike, "floe" offers a precise term for something a generic word like "ice" cannot capture: not frozen precipitation or a glacier, but a discrete, mobile plate of ice riding on open water.
nounA floe is a flat, sheetlike mass of sea ice or river ice, typically several metres thick and often covering a large expanse of water.
- A flat, sheetlike mass of floating sea or river ice.
"The expedition's ship became trapped between shifting floes in the Antarctic pack ice."
"Polar bears often drift for miles on a single floe."
"Radar imagery mapped the breakup of vast floes along the Labrador coast."
Standard regular plural; used when referring to multiple ice sheets.
"The channel was choked with broken floes well into spring."
A single Arctic floe can be larger than a city — yet thin enough to crack apart overnight.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of floe
"Floe" first appeared in English in the early seventeenth century, borrowed from Norwegian "flo" (related to Old Norse "fló"), meaning a layer or flood of ice. The Scandinavian word ultimately traces back to the same Germanic root that gave English "float," so a floe is etymologically simply ice that floats. Cognates survive in other Germanic languages, and the word has been used consistently by sailors and explorers since the age of Arctic whaling.
How floe is actually used
Almost always used in polar or maritime contexts; frequently found in the compound "ice floe." The word carries connotations of cold, isolation, and drifting danger in literary usage.
Easily confused with floe
"Flow" refers to movement of liquid or continuous motion, while "floe" is a noun for a sheet of floating ice; the two share a similar sound but entirely unrelated meanings.