What does aiguille mean?
An aiguille is a slender, sharply pointed pinnacle of rock, typically rising from a mountain ridge or face, and the word belongs firmly to the vocabulary of mountaineering and alpine geography. Borrowed from French — where it originally meant a needle — it entered English through descriptions of the Alps, whose granite spires around Chamonix, such as the famous Aiguille du Midi near Mont Blanc, gave the term its lasting association. In climbing literature, aiguilles are prized as dramatic objectives and landmarks, often named individually on maps and in route guides. The word carries connotations of steepness, exposure, and technical difficulty, since needle-like summits usually demand skilled climbing rather than simple walking. Though rare in everyday speech, it remains standard among climbers, guidebook writers, and landscape photographers describing jagged alpine skylines.
nounA sharp, needle-like pinnacle of rock, especially one found on a high mountain ridge or face; the term is chiefly used in mountaineering contexts.
- A sharp, needle-shaped pinnacle of rock on a mountain, especially in alpine terrain.
- (Rare, historical) A needle used in sewing or surgery, borrowed directly from French.
"The climbers spent hours roped together, threading their way up a narrow aiguille above the glacier."
"At dawn, the aiguilles above Chamonix caught the first light like a row of stone needles."
"The route description warned of an exposed traverse beneath the final aiguille."
Standard English plural, commonly used in guidebooks and mountaineering writing to describe clusters of rock pinnacles.
"The ridge is broken by a series of granite aiguilles."
The word for a jagged mountain spire comes from the French word for 'sewing needle' — Mont Blanc's skyline really is threaded with needles.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aiguille
Aiguille comes from the Old French 'aiguille', meaning a needle, which derives from Latin 'acus' (needle), ultimately from the root *ak- meaning sharp or pointed — the same root that gives English 'acute' and 'acumen'. The word entered English in the early nineteenth century through mountaineering accounts of the Alps, where French names for needle-like peaks were adopted by British climbers. Its Romance cousins include Italian 'ago' and Spanish 'aguja', both meaning needle.
How aiguille is actually used
Almost exclusively used in mountaineering, geography, and alpine literature; outside these contexts it can sound obscure or affected. The plural 'aiguilles' is common in guidebooks describing clusters of rock pinnacles.
Easily confused with aiguille
An aiguillette is a decorative braided cord worn on military or ceremonial uniforms, whereas an aiguille is a needle-like rock pinnacle.