English Thesaurus

Synonyms of 'thrash'

(verb) 
Definition
to defeat totally
They thrashed their opponents 5-0.
Synonyms
defeat
His troops defeated the opposing army.
,
beat
He was easily beaten into third place.
,
hammer (informal)
He hammered the young left-hander in four straight sets.
,
stuff (slang)
,
tank (slang)
, ,
overwhelm
One massive assault would overwhelm the weakened enemy.
,
slaughter (informal)
He slaughtered his opponent in three sets.
,
lick (informal)
He might be able to lick us all in a fair fight.
,
paste (slang)
,
rout
The Norman army routed the English opposition.
,
maul
The troops were severely mauled before evacuating the island.
,
trounce
Australia trounced France by sixty points to four.
,
clobber (slang)
,
run rings around (informal)
,
wipe the floor with (informal)
,
make mincemeat of (informal)
,
blow someone out of the water (slang)
, ,
beat someone hollow (British, informal)
(verb) 
Definition
to beat (someone), esp. with a stick or whip
He was thrashed with a cane until his skin turned red.
Synonyms
beat
He lost the boxing match and was badly beaten by his opponent.
,
wallop
She walloped me over the head with a cushion.
,
whip
Eyewitnesses claimed he whipped the horse up to 16 times.
,
hide (informal)
,
belt (informal)
Is it true that she belted George in the stomach?
,
leather
They leathered me because they thought I could tell them where she'd gone.
,
tan (slang)
I'll tan his backside for him.
,
cane
,
lick (informal)
,
paste (slang)
,
birch
,
flog
He never flogs his horse no matter how slowly she goes.
,
scourge
They were scourging him severely.
, ,
clobber (slang)
She clobbered him with a vase.
,
lambast(e)
, ,
horsewhip
,
give someone a (good) hiding (informal)
, ,
take a stick to
,
beat or knock seven bells out of (informal)
(verb) 
Definition
to move about in a wild manner
He collapsed on the floor, thrashing his legs about.
Synonyms
thresh
,
flail
His arms were flailing in all directions.
, , ,
toss
I felt as though I'd been tossing and turning all night.
,
squirm
Mentioning religion is a sure way to make him squirm.
,
writhe
He was writhing on the floor in agony.
,
heave
Heave a brick at the telly.
,
toss and turn

phrasal verb

See thrash something out

Additional synonyms

in the sense of beat someone hollow
Definition
to defeat someone thoroughly
Synonyms
in the sense of belt
Definition
to give (someone) a sharp blow
Is it true that she belted George in the stomach?
Synonyms
deck (slang),
bash (informal),
sock (slang),
clout (informal),
clobber (slang),
wallop (informal),
lay one on (slang),
beat or knock seven bells out of (informal)
in the sense of clobber
Definition
to batter
She clobbered him with a vase.
Synonyms
bash (informal),
beat up (informal),
wallop (informal),
rough up (informal),
lambast(e),
duff up (informal),
beat or knock seven bells out of (informal)

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Video: pronunciation of 'thrash'

Source

Thesaurus for thrash from the Collins English Thesaurus
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