đinh ninh
[ʔɗïŋ˧˧ nïŋ˧˧]
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
(verb) to harp on about; to belabour
Register: formal
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Examples
đinh ninh lời Bác/Ngườito mark His words
Wiktionary example (CC BY-SA 4.0)
Sources & notes
Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗
Sense 2
Meaning · English
(verb) to be certain/positive
Register: formal
Examples
Hắn đinh ninh rằng trong nhà không còn ai.He was positive no one was home.
Wiktionary example (CC BY-SA 4.0)
Common questions
What does “đinh ninh” mean?
(verb) to harp on about; to belabour
Is “đinh ninh” formal or informal?
đinh ninh is generally formal.