Check words you know to measure your vocabulary size (number of word families).
stare
company
simple
nobody
accident
season
dragon
surround
civilian
statistic
broadcast
majority
integral
civic
cinema
comic
umbrella
bulge
relentless
tolerance
liner
ordeal
grieve
bun
atlas
negro
culprit
culinary
pedestal
espionage
disaffect
paged
outlying
arable
impel
tiresome
docile
ballerina
procrastinate
carnation
defrost
trachea
anti
diabolical
quintet
okra
holograph
backbench
ravioli
nadir
hoar
abeyance
magnetosphere
homophone
muggy
phosphorylation
mayfly
pidgin
ileal
streptomycin
hick
haricot
cenotaph
sulphide
chinchilla
polymath
cour
prokaryote
tufa
hiatal
bene
decathlete
pinata
annulus
caboose
polyptych
mure
appian
murrelet
nightjar
chancre
screwworm
cancerian
affiance
ghillie
claudication
inspirit
backchat
dalek
oenophile
oersted
physiatrist
oloroso
sauterne
fila
syce
necrology
glossina
grift
encephalon