Translation guide
The English word 'rounding' can refer to making something round in shape, approximating a number, or completing a process. This guide covers natural Japanese expressions for each meaning.
To describe the action of making something round or curved, or the state of becoming round.
Transitive verb meaning to make something round, such as rolling into a ball or rounding one's back.
I rounded the paper into a ball.
The cat is rounding its back.
Intransitive verb meaning to become round or curved. Often used for shapes or posture.
The corners became rounded.
A more literary expression meaning to take on a rounded shape, often used for objects or features.
The vase has a rounded shape.
To express the mathematical action of adjusting a number to a nearby, often simpler, value.
The standard term for rounding numbers, literally 'rounding to the nearest whole number' by discarding 4 and below, adding 1 for 5 and above.
Please round off the decimals.
If you round this number, it becomes 10.
To round up a number, always increasing to the next specified unit.
To round down a number, discarding the lower digits.
To make into an approximate number; a more general term for rounding or estimating.
Report the population as a rounded number.
To express the idea of bringing something to a conclusion or final stage, often in a satisfying way.
To wrap up, conclude, or round off an event, speech, or series of actions.
I'll round off with a final word.
To finish or put the final touches on something, often a creative work or task.
To bring to completion; more formal and often used for stories or projects.
To round off the series.
To describe the action of going around a curve, such as in driving or walking.
丸める is transitive (to make something round), while 丸くなる is intransitive (to become round). Use 丸める when you are rounding an object, and 丸くなる when describing the shape itself.
English 'rounding a corner' is not directly translated with a single verb meaning 'to round'. Use 曲がる (to turn) or 回る (to go around) depending on the context. Do not use 丸める for this meaning.
to round a corner
Rounding the numbers made the calculation easier.
She rounded her lips to whistle.
Calculate by rounding up the fractions.
We round down the decimals.
We rounded off the party with a song.
プレゼンを仕上げる。
To round off the presentation.
The car rounds the curve.