sneak up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To approach a person or animal without being seen or heard
Where it’s used:
Used
American English
Examples
If you sneak up from behind like that, you'll give me a heart attack!
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To deliver a sudden effect, often unexpectedly and without warning.
Nghĩa · Tiếng Việt
Đưa lại một tác động đột ngột, thường đột nhiên và không cảnh báo
Machine-translated — suggest a fix
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “sneak up” mean?
To approach a person or animal without being seen or heard
Is “sneak up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.