công hiệu
[kəwŋ͡m˧˧ hiəw˧˨ʔ]
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
(noun) efficiency; efficacy; effect
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Examples
Tôi nghe nói làm mát phần gáy khi trời nóng rất công hiệu.I hear that it's good to cool the back of your neck when it's hot outside.
Tatoeba sentence #5772438 (CC BY 2.0 FR, tatoeba.org, retrieved 2026-07-31)
Sources & notes
Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗
Sense 2
Meaning · English
(adjective) having a (good) effect; effective
Common questions
What does “công hiệu” mean?
(noun) efficiency; efficacy; effect
Is “công hiệu” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.