noi6 sin3內線内线
Jyutpingnoi6 sin3
Yalenoih sin
Definition
An internal telephone extension, or a spy planted within an opposing group.
- an internal telephone line or extension
- figurativea spy or undercover agent planted within an organization
neutralworkcommunication
How it's used
Primarily used in professional or office settings to refer to internal telephone systems. It specifically denotes a line that bypasses the public exchange, making it inaccessible to outside callers. In a metaphorical sense, it can also describe an insider source or a mole within an organization.
Measure word
tiu4條tìuhExamples
Please transfer me to the marketing department's extension.
Do you know what their extension number is?
Related words
Common mistake
Do not confuse this with 內幕, which refers to inside information or secrets. While both involve internal access, 內線 is strictly for the phone line or the person acting as an informant, whereas 內幕 describes the information itself.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- QuestionsFrom yes or no questions to asking who, what, where, and when. The patterns you need to ask questions naturally in Cantonese.
- ClassifiersCantonese puts a classifier between a number and a noun, and a bare classifier on its own can mean the. Learn the common ones and how to use them.
- ComparisonsHow to say bigger than, the most, the same as, and not as good as. Cantonese uses 過 where Mandarin uses 比, and that catches a lot of learners out.



