English Reference

Word

rounding

Phoneticsround·ing

US/ˈɹaʊndɪŋ/

UK/ɹˈaʊndɪŋ/

Definitions

01mathematics

B2 · Math

n. the act of changing a number to a simpler value, like the nearest whole number.

n. the process of replacing a numerical value with a simpler approximation, typically to a specified number of decimal places or significant figures.

“The teacher explained that rounding 4.7 up to 5 makes the calculation easier.”

“The software performs automatic rounding to two decimal places to ensure that financial reports remain consistent across different currencies.”

Technical

Usage

Often followed by 'up' or 'down' to indicate the direction of the approximation.

02making something curved

C1

n. the act of making an object or a surface round or curved.

n. the physical process of shaping an object into a convex or circular form.

“The carpenter finished the table with a slight rounding of the sharp edges.”

“The rounding of the hull was designed to reduce water resistance and improve the vessel's overall speed.”

Technical

Usage

Common in manufacturing, woodworking, and linguistics contexts.

Synonyms

Antonyms

Real-World Examples

“The numbers for each question may add up to more than 100% due to rounding.”
The Conversation · 27 Aug 2026
“Totals may not add up to 100% due to rounding.” It’s like trying to capture a cloud.”
Toronto Sun · 14 Aug 2026

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

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