bou2 zing3 syu1保證書保证书
Jyutpingbou2 zing3 syu1
Yalebóu jing syū
Definition
A formal document of guarantee, assurance, or undertaking.
neutralshoppingwork
How it's used
Used primarily in formal or commercial contexts, this term refers to a physical document that serves as a legal or binding promise. Unlike the verb 保證 which is used freely in casual conversation, this noun is almost exclusively reserved for written contracts, warranties, or official letters of undertaking. It carries a sense of professional accountability and is standard in business or retail settings.
Measure word
zoeng1張jēungExamples
Remember to take the guarantee when you buy electrical appliances.
Has this letter of assurance been signed yet?
Related words
Common phrases
Letter of Indemnity
to sign a guarantee
Common mistake
Learners often confuse this with the verb 保證. Remember that 保證書 is a physical noun, so it requires a classifier like 張, whereas using it as a verb to mean 'to guarantee' is grammatically incorrect.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Directional complementsThe small words added after a verb to show direction of movement, like up, down, out, in, and back. Common in everyday Cantonese.
- DemonstrativesThis and that with 呢 and 嗰, the personal pronouns, and how 哋 turns I, you, and he into we, you all, and they.
- Resultative complementsSticking a result word onto a verb to show how it turned out, like eat until full or look and find. A productive everyday pattern.
