Word
buoyancy
Phoneticsbuoy·an·cy, stress on the first syllable
US/ˈbɔɪənsi/
UK/bˈɔɪənsi/
Definition
n. the ability of an object to float in a liquid or gas. It is the force that pushes an object upward when it is submerged.
n. the ability of an object to float in a fluid, resulting from the upward force exerted by the fluid. Often used to describe the physical property of a material or the financial stability of an economy.
Examples
“The boat has good buoyancy and stays high in the water.”
“The ship's hull is designed to provide enough buoyancy to prevent it from sinking even if the cargo compartment fills with water.”
“Economists often monitor the buoyancy of the housing market to determine whether a recovery is sustainable or merely a temporary fluctuation in consumer confidence.”
Examples
simple
“The boat has good buoyancy and stays high in the water.”
contextual
“The ship's hull is designed to provide enough buoyancy to prevent it from sinking even if the cargo compartment fills with water.”
complex
“Economists often monitor the buoyancy of the housing market to determine whether a recovery is sustainable or merely a temporary fluctuation in consumer confidence.”
Real-World Examples
“By adjusting their size, the larvae can change their buoyancy and control whether they rise or sink in the lake.” “To create a split-level image, he turned his camera upside down to aid buoyancy distribution and slowly moved towards the curious fish.” Etymology
From buoyant + -cy or buoy + -ancy.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Occasional
- Level
- C1 · Advanced
- Updated
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englishreference.com/q/buoyancy