英语词库
(动词) 
Definition
to make or become tight or tighter
She tightened her grip on the rope in order to hoist herself up over the rocks.
同义词
, ,
strengthen
Any experience can teach and strengthen you.
, ,
harden
Their action can only serve to harden the attitude of landowners.
,
反义词
,
ease off
,
let out
(动词) 
Definition
to make or become tight or tighter
He flung his whole weight back, tightening the rope.
同义词
stretch
Make sure you don't stretch the pastry as you ease it into the corners.
,
strain
Several thousand supporters strained to catch a glimpse of the new president.
,
tense
His stomach muscles tensed.
,
tauten
,
stiffen
The blood supply to the skin is reduced when muscles stiffen.
,
rigidify
反义词
(动词) 
Definition
to make or become tight or tighter
I used my thumbnail to tighten the screw.
同义词
fasten
He fastened the door behind him.
,
secure
The frames are secured by horizontal rails to the back wall.
,
screw
I like the sort of shelving that you screw on the wall.
,
fix
Fix the photo to the card using double-sided tape
反义词
unscrew
, ,
(动词) 
Definition
to make or become tight or tighter
Her throat had tightened and she couldn't speak.
同义词
contract
As we move our bodies, our muscles contract and relax.
,
narrow
This sign means that the road narrows on both sides.
,
constrict
Severe migraine can be treated with a drug which constricts the blood vessels.
,
become tight
,
become narrow
(动词) 
Definition
to make or become tight or tighter
Martha tightened her lips and shook her head.
同义词
purse
She pursed her lips in disapproval.
, , ,
screw up
,
pucker
She puckered her lips and kissed him on the nose.
(动词) 
Definition
to make or become tight or tighter
They have tightened security along the border.
同义词
increase
The company has increased the price of its cars.
,
heighten
The move has heightened tension in the state.
,
toughen (up)
,
beef up (informal)
,
crank up (informal)
,
scale up
,
make stricter
,
make more rigorous

其他同义词

in the sense of constrict
Definition
to make smaller or narrower by squeezing
Severe migraine can be treated with a drug which constricts the blood vessels.
in the sense of fix
Definition
to attach or place permanently
Fix the photo to the card using double-sided tape
in the sense of harden
Definition
to make or become stronger or firmer
Their action can only serve to harden the attitude of landowners.
同义词

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Video: pronunciation of 'tighten'

学习资源

tighten 的词库—— 柯林斯 英语词库
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