Check words you know to measure your vocabulary size (number of word families).
voice
yes
behind
term
bang
ruin
wire
vote
cluster
import
task
abstract
socialist
hardware
clay
optimist
thermal
numb
smear
maternal
sleek
firework
comet
chromosome
drizzle
snapshot
rivet
deft
condone
pumpkin
khaki
gazette
incursion
dorsal
ling
cadmium
tinkle
cauliflower
supposition
palazzo
transgenic
monotheistic
canto
cortical
hickory
ovum
miser
cipher
agribusiness
lessor
overgrowth
stalactite
granuloma
bobbin
hypotensive
roughshod
trailblaze
mayfly
sepoy
sequelae
ellipsoid
happenstance
molybdenum
gunk
quartier
antsy
delphic
halberd
macromolecule
electroencephalogram
irruption
populaire
postulant
poplin
mung
osier
manilla
polyvalent
rhinoplasty
federative
parle
sodality
nystatin
maillot
shigella
nitrosamine
debark
parang
cerumen
silenus
transaxle
avo
barathea
simvastatin
loto
arista
actinide
galvanometric
paty
euthenics