Usage of "knuckle down"

Portuguese

Work very hard, like a slave.

Usage of knuckle down in English

What matters is being able to knuckle down when things get serious. 
 The Irish Times 

But the commander refused to knuckle down to any show of arrogance. 
 Treachery in Outer Space 

Expect Mackenzie to knuckle down on project execution, boost productivity and cut costs. 
 Reuters 

But she had to knuckle down-takethe easy way for her. 
 Poor Man's Rock 

He circled to her back and stroked a knuckle down the exposed skin. 
 Shadow fall 

I am just going to get in there, knuckle down and do my best. 
 The Guardian 

Sounds drastic, but that's what made me knuckle down and write March to November. 
 The Irish Times 

Wanting to comfort her, he traced a knuckle down the curve of her cheek. 
 The manning grooms: bride on the loose\same time, next year 

Son or daughter failing to knuckle down to the revision? 
 The Guardian 

Frank, once more I knuckle down to your superior wisdom. 
 The Saddle Boys in the Grand Canyon; or, The Hermit of the Cave 

Looks like I'm not gonna be a pro anything, and I better knuckle down. 
 Wired 

Now I have to knuckle down, I need to hit the ground running, he said. 
 Reuters 

Like Humar, he came under pressure to give up his freewheeling lifestyle and knuckle down. 
 Rock and Ice Magazine 

It was Bob who gave me the determination to knuckle down and get over it. 
 The Guardian 

I'm not going to knuckle down to a yellow-stomach- 
 The Green Mummy 

If you knuckle down and pass examinations a year early, why, I'll help you through college. 
 East of eden 

knuckle

Verb

Preposition

Translations for knuckle down

Portuguese

Knuckle down through the time

Knuckle down across language varieties

Ireland

Common

United Kingdom

Less common

United States of America

Less common

Meanings of knuckle down in English