knock on
Principiante (A2) neutral
To tap or hit a door to let people know you are there.
"She knocked on the office door twice and waited for an answer before entering."
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Peace...? (1814)
Historia Civilis · 3:08
Knock on wood!
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The Basement Yard · 60:21
Knock on wood.
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Emma Grede · 81:30
No knock on you.
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Speak English With Tiffani · 18:07
So, I knock on
Essentials: Optimize Your Exercise Program with Science-Based Tools | Jeff Cavaliere
Andrew Huberman · 18:28
Uh knock on wood.