English Reference

Word

float

US/ˈfɫoʊt/

UK/flˈəʊt/

Definitions

01to stay on top of liquid

A2 · Elementary

v. to stay on the surface of a liquid like water without sinking.

v. to be supported by a fluid of greater density than the object, remaining on the surface or suspended within it.

“The children watched the colorful plastic ducks float across the swimming pool.”

“Even heavy steel ships can float because they are designed to displace a volume of water equal to their own weight.”

Synonyms

Antonyms

02to move gently through air

B1 · Intermediate

v. to move slowly and lightly through the air or across a space.

v. to drift or glide gently through the air or move in a fluid, effortless manner.

“A single white feather floated down from the sky and landed on the grass.”

“The scent of jasmine floated through the open window, filling the study with a delicate fragrance.”

Synonyms

Antonyms

03to suggest an idea

B2 · Upper Intermediate

v. to suggest a new idea or plan to see if people like it.

v. to propose an idea, scheme, or candidate for consideration, often to gauge public or group reaction.

“The manager floated the idea of a four-day work week during the meeting.”

“The government floated a proposal for a new tax incentive to determine if the private sector would support the investment.”

Antonyms

04parade vehicle

B1 · Intermediate Countable noun

n. a large, decorated vehicle used in a parade.

n. an elaborately decorated platform or vehicle designed for display in a parade or pageant.

“The most popular float in the parade was covered in thousands of fresh roses.”

“Volunteers spent months constructing the carnival float, ensuring every mechanical element functioned perfectly for the televised procession.”

Synonyms

05money for change

B2 · Upper Intermediate Uncountable noun British English

n. a small amount of cash kept in a shop's till to give customers change.

n. a fixed sum of money placed in a cash register at the start of a business period to facilitate making change.

“The shop assistant checked the float before opening the doors to customers.”

“The supervisor noticed a discrepancy in the daily float, prompting a full audit of the morning's transactions.”

Synonyms

petty cashreserve

06ice cream drink

B1 · Intermediate Countable noun Cooking

n. a drink made of soda with a scoop of ice cream on top.

n. a beverage consisting of a soft drink, such as root beer or cola, with a scoop of ice cream suspended in it.

“On a hot day, nothing is better than a cold root beer float.”

“The diner's signature dessert was a classic coke float served in a tall glass with a long spoon.”

07buoyant object

B2 · Upper Intermediate Countable noun

n. an object that stays on top of water, like a marker for fishing or a safety device.

n. a buoyant device used to support something in a liquid or to mark a specific location on the surface.

“The fisherman watched his float closely, waiting for a fish to bite.”

“The safety inspector checked the emergency floats on the aircraft to ensure they would deploy correctly in the event of a water landing.”

Synonyms

08decimal number

C1 · Advanced Countable noun Computing Technical

n. a type of number in computer programming that can have a decimal point.

n. a data type representing a floating-point number, typically used for real numbers with fractional parts.

“You should use a float instead of an integer if you need to store prices.”

“The algorithm failed because the programmer used an integer where a float was required to maintain the precision of the calculations.”

Synonyms

decimalfloating-point

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “float” in context.

Verb

01. float an idea

“The manager floated an idea about flexible working hours during the meeting.”

verb + noun

02. float gently

“The autumn leaves floated gently down to the surface of the pond.”

verb + adv

03. float on water

“Wood is less dense than water, which is why it floats on water so easily.”

verb + prep + noun

Noun

04. cash float

“Before opening the shop, the cashier checked that the cash float was correct.”

noun + noun

05. parade float

“The most impressive parade float was decorated with thousands of fresh roses.”

noun + noun

Preposition

06. float in the air

“Dust particles were floating in the air, visible only in the shafts of sunlight.”

verb + prep + noun

Real-World Examples

“A little way out, I stop and float on my back.”
The Guardian 23 Aug 2026
“In its walls, painted gods marched or floated through an ocean of hieroglyphs.”
The Guardian 26 Aug 2026

Etymology

From Middle English floten, from Old English flotian (“to float”), from Proto-West Germanic flotōn, from Proto-Germanic flutōną (“to float”), from Proto-Indo-European plewd-, plew- (“to float, swim, fly”). Compare flow, fleet.

From Middle English flote, from Old English flota (“sailor, boat”), from Proto-West Germanic flotō, from Proto-Germanic flutô, from Proto-Indo-European *plewd-.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

VERB

float(B2)

Idioms

Domains

AviationBiologyComputingElectronicsFinanceFishingProgramming

This entry

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.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL 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: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper IntermediateOxford
Updated

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