dou1

Jyutpingdou1
Yaledōu
Common

Definition

A beep; a short, high-pitched sound.

colloquialtransporttechnology

How it's used

Originally an onomatopoeia for a high-pitched sound, this word has evolved into a common verb for the act of tapping an electronic card or device against a reader. It is now standard to use it to describe the entire process of scanning a transit card or payment device. The sound itself is often referred to as 嘟聲.

Related words

synonympaak3paksee alsoduk1dūk

Common phrases

to tap a card
to make a beep sound

Common mistake

Do not confuse this with 篤, which means to poke or stab with a finger or pointed object. While they sound similar, 嘟 specifically refers to the electronic beep or the action of tapping a card, whereas 篤 is a physical action.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector