What does isle mean?
An isle is an island, particularly a small one. The word has a literary and slightly old-fashioned character, so it often lends a poetic or traditional tone to a sentence. In ordinary modern speech, “island” is normally preferred, although “isle” remains established in geographical names and expressions such as “the British Isles.” It can refer broadly to an island or to a small, remote landmass, often with associations of solitude, beauty, or an older maritime world. Its pronunciation is identical to that of “aisle,” but the words have entirely different meanings: an isle is surrounded by water, while an aisle is a passageway. Recognising “isle” is useful when reading literature, place names, or formal prose, where its distinctive sound and historical flavour may be intentional.
nounAn island or a small island. The word is chiefly literary or archaic, with “island” being the usual modern term.
- An island, especially a small island.
- A landmass surrounded by water, especially in a poetic or archaic context.
"The small isle lay beyond the reach of the mainland."
"The islanders welcomed the visitors to their remote isle."
"In the poem, the ruined castle stands on an isle in the northern sea."
Usually used in literary or geographical contexts; the regular modern plural of “island” is “islands.”
"The maps show several isles scattered across the archipelago."
An isle is an island with a literary flair: it survives in phrases such as “the British Isles” even though everyday speakers generally say “island.”
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does isle come from?
The word comes through Old French from Latin insula, meaning “island.” It entered English in the medieval period and was once the ordinary English word for an island, but “island” later became dominant. The same Latin root is reflected in words such as “insular,” “insulate,” and “peninsula.”
Related word forms
How isle is actually used
Generally literary, archaic, or geographical. It is more common in formal writing, place names, and poetic usage than in everyday speech.
Easily confused with isle
An “isle” is an island, whereas an “aisle” is a passage between seats or rows.
“Island” is the standard modern word; “isle” is more literary and is often used for a small or poetic island.