seon4 loeng6純量纯量
Jyutpingseon4 loeng6
Yalesèuhn leuhng
Definition
Scalar; a quantity that has magnitude but no direction.
neutralschool
How it's used
This term is strictly used in mathematical and physical contexts to describe quantities like mass, temperature, or speed. It is a technical loan translation from English, so you will rarely encounter it outside of a classroom or scientific discussion. In casual conversation, people usually just describe the concept by saying a value only has size.
Examples
Scalars only have magnitude, they don't have direction.
Do you know the difference between a scalar and a vector?
Related words
Common mistake
Learners often confuse this with general adjectives meaning pure, such as 純粹, which share the same character but have completely different meanings. Ensure you only use this when specifically referring to the mathematical concept.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



