Check words you know to measure your vocabulary size (number of word families).
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smoke
terrible
extreme
camera
bike
breed
visual
equation
diplomat
negotiate
patron
evoke
stagger
enrich
antibody
cripple
causal
cigar
secrete
chimpanzee
rash
repeal
postulate
sandal
mugged
pellet
hermit
encapsulate
innumerable
beset
wayward
raffle
moi
decimate
rickety
swastika
evacuee
beguile
deodorant
fro
epiphany
poetics
conjugal
canton
dragoon
kipper
gnash
nib
hibiscus
bestial
rangy
cardamom
sidecar
oligopoly
anthropic
disembowel
minotaur
intracranial
ironmonger
pyrex
rigmarole
capacitive
gusset
maisonette
disinvestment
immolate
mitogen
fustian
tetrachloride
locum
fluoridate
gaijin
terrarium
polyptych
fumigant
slattern
declension
mannitol
victoire
limnology
bejeezus
copula
chook
duce
casuarina
phenology
deplane
demit
gweilo
liverwurst
crocket
parky
gowan
charpoy
hebdomadal
encaenia
neots
chlorella