Memorize synonyms of words that you usually prefer to use. Although there is no set vocabulary that will guarantee a higher language score, use words that contain the meaning that you intend to deliver and not be repetitive.
abandon
abate
abhor
abnormal
abolish
abrasive
abridged (adj.)
abrupt
absent
absolute
abstain
absurd
abundant
abuse
abysmal
acclaim
accolade
accommodate
accompany
accord
accountable
accumulate
accuse
accustomed
acquaintance
acquiesce
acquire
adamant
address (v.)
adept
adequate
adhere
adjust
admonish
adolescent
adorn
adverse
adversity
advocate (v.)
aesthetic
affable
affected (adj.)
affiliated
affinity
affluent
bereft
bicker
bigotry
bilateral
bitter
bland
blatant
bleak
blunder
broke (adj.)
browse
budget
buoyant
burly
cacophony
calamity
callous
debunk
decadence
capacity
capitulate
capricious
captivate
caricature
casualty
catalyst
catastrophic
cater
catharsis
caustic
cave (v.)
cede
censor
central
chagrin
chaotic
characteristic (adj.)
chauvinistic
chide
chivalrous
chortle
chronic
circulate
circumvent
clarify
coerce
cognitive
cohesion
collaborate
collapse
collateral (adj.)
collected (adj.)
collide
dabble
damp
daunting
dawn (v.)
dearth
debatable
debilitate
debris
debt
depravity
deprecate
derisive
derive
derogatory
designated
desolate
despair
despise
despondent
destitute
detached (adj.)
deter
deteriorate
detrimental
devastation
deviate
devious
devoid
devoted (adj.)
dexterous
diabolical
diagnose
didactic
differentiate
diffident
diffuse
dignity
digress
dilapidated
diligent
dilute
din
dire
disarray
disband
discern
discipline
disclose
discomfort
disconcerting
disconsolate
discrepancy
exasperation
exceptional
excessive
exclusive
excruciating
execute
exemplary
exhaustive
exhilarating
exonerate
exorbitant
expedite
expenditure
explicit
exploit
extensive
extraneous
exuberant
fabricate
façade
facetious
facilitate
factor
faculty
fallacious
fallacy
falter
fantasize
fastidious
fatal
fathom
fatigue
favorable
feasible
feat
feign
fervor
fiasco
fickle
fictional
fiery
flamboyant
flatter
flippant
flourish
fluctuate
foresight
forlorn
formality
forte
fortuitous
fragile
hypocrite
hypothetical
idealistic
identify
ideology
idiosyncrasy
ignominious
ignorant
illusory
immerse
imminent
immune
immutable
inconsequential
incorrigible
incredulous
indictment
indifferent
indignant
indiscriminate
indispensable
induce
ineptitude
inexplicable
infancy
infringe
nadir
nag
naïve
narcissistic
naturalize
nausea
negate
negligence
nemesis
niche
prevalent
privatize
prodigal
profane
reconcile
nonchalant
nostalgia
notoriety
novel (adj.)
noxious
nuisance
nullify
nurture
object (v.)
obligate
obliterate
patronizing (adj.)
paucity
pedantic
pending (adj.)
perfunctory
peril
peripheral
permeate
pernicious
perpetrate
perpetuate
perseverance
personnel
peruse
pervasive
pessimism
petition
phenomenon
philanthropist
philistine
piety
pioneer
pivotal
placate
poignant
polarize
ponder
postulate
pragmatic
preclude
precocious
predecessor
prejudice
proficient
profligate
profound
prolific
prolong
prompt
proponent
propriety
prosaic
prospective
protégé
provincial
provisional
provoke
proximity
prudent
punctual
pundit
quaint
surreptitious
susceptible
sustain
sycophant
sympathy
synonymous
systematic
taciturn
tangent
tardiness
tarnish
tedious
temperamental
tempting
tenacious
tentative
tenuous
tenure
terse
testify
therapeutic
thrive
thwart
timid
tirade
toil
torment
totalitarian
tout
tranquil
aftermath
aggravate
aghast
agitate
alacrity
alarming (adj.)
alienate
allegedly
alleviate
allocate
allude
aloof
alternative
altruistic
ambience
ambiguous
ambivalent
amiable
amount (v.)
ample
analysis
anchor
angle
anguish
animated
animosity
annual
anonymous
anticipate
antics
antiquated
antique
anxiety
apathy
ape (v.)
apex
appalled
appeal
appease
applicable
appraise
apprehensive
appropriate (v.)
arbitrary
archaic
betray
blurt
boisterous
bolster
bombastic
boundless
bourgeois
boycott
braggart
brusque
brutal
colossal
combustible
commemorate
commit
compassionate
compatible
deceased
deceive
colloquial
collusion
colony
compelling (adj.)
competent
compile
complacent
complement
compliance
complicate
component
comprehensive
comprise
compulsory
conceal
concede
conceited
conceive
concise
conclusive
concrete (adj.)
condemn
condescending
condone
confession
confide
confine
confrontational
conjecture
conscientious
consent
consistent
console
conspicuous
decorum
dedicated (adj.)
deference
defiance
deficiency
definitive
degradation
delegate
deliberate
discrimination
disdain
disgruntled
disheveled
disillusioned
disingenuous
dismal
dismay
dismiss
disparage
disparity
dispel
disregard
disseminate
dissent
dissonance
dissuade
distinct
distort
distraught
diversity
divisive
docile
doctrine
document (v.)
dogged
dogmatic
douse
drastic
dread
dubious
dumbfounded
duplicate
durable
dwarf (v.)
dwindle
earnest
ebb (v.)
eccentric
eclipse (v.)
economical
effusive
egotism
frail
fraudulent
frigid
frivolous
frugal
fulfill
fundamental
furnish
furtive
futile
gape
gawk
generalization
generic
genuine
gluttony
gnaw
gratify
gratuitous
gravity
gregarious
groundbreaking
grovel
grudge
gullible
hamper
haphazard
hapless
harness (v.)
hazardous
hedonist
heresy
impair
impassive
impeccable
impede
impervious
impetuous
implacable
implausible
implement
implicit
imposing (adj.)
impoverished
improvise
inadvertent
inane
incensed (adj.)
incessant
incite
inclination
inclusive
infuriate
ingenious
inherent
inhibit
innate
innocuous
inscrutable
insightful
insipid
judicious
justify
kindle (v.)
laborious
lackluster
lament
languish
laud
lavish
lax
lenient
lethal
lethargic
leverage
liable
libel
liberty
nominal
outrageous
outspoken
outstrip
overt
pacify
painstaking
pandemic
paradigm
recount
rectify
recuperate
redundant
refined (adj.)
oblivious
obscure
obstinate
obtuse
odious
ominous
omit
omnipotent
opaque
opinionated
opportunistic
qualified (adj.)
quandary
quintessential
quirk
quixotic
quotidian
radical
ramble
rapport
ratify
rationale
rebuttal
reciprocate
recluse
relent
relevant
reluctant
reminiscent
remorse
remote (adj.)
renounce
renowned
repel
reportedly
reprehensible
reprimand
reproach
repudiate
reserved (adj.)
resigned (adj.)
resilient
resolve
resonate
resort (v.)
respite
retaliate
reticent
retract
retrospect
revelation
revere
revert
rhetorical
rigor
robust
routine (adj.)
rudimentary
rural
sage (adj.)
salient
sanction
sanguine
transient
transition
trepidation
trite
trivial
trope
tumultuous
turbulence
turmoil
ulterior motive
unanimous
uncanny
underlying (adj.)
undermine
undulate
uniform (adj.)
unmanned
unprecedented
unruly
unwarranted
upbringing
uphold
urban
urbane
usurp
utilitarian
vacant
vacillate
validate
variable
arouse
articulate
artificial
aspire
assess
assiduous
assuage
astute
atone
atrocity
attest
attire
attribute (v.)
audacious
auspicious
austere
authentic
autonomy
avenue
aversion
avid
awe
badger (v.)
baffle
baleful
banal
bankrupt
bargain
barren
barter
baseless
bashful
beam (v.)
bearable
befall
begrudge
beguile
belatedly
belie
belligerent
bemoan
bemused
beneficiary
benevolent
benign
biased
bravado
brazen
breach
breadwinner
breathtaking
brevity
contest (v.)
contingency
contract (v.)
contrived (adj.)
controversial
conviction
decency
decipher
constraint
constructive
contaminate
contemporary
contempt
contentious
convoluted
coordinate
copious
cordial
correlation
corroborate
corruption
courteous
covert
cram
crave
credibility
crestfallen
cross-reference
crude
crutch
crux
cryptic
cuisine
culminate
culpable
culprit
curb (v.)
currency
cursory
curtail
custom-made
cynical
delirious
delusional
delve
demanding (adj.)
demeanor
denounce
deplete
deplore
elaborate
elated
elevate
elicit
eloquent
elusive
embellish
embody
emerge
eminent
empathy
empirical
emulate
endeavor
endemic
endorse
endure
engulf
enhance
enigma
enmity
ensure
entail
entice
entrench
ephemeral
epiphany
epitome
equitable
equivocal
eradicate
erratic
erroneous
erudite
escalate
esoteric
espionage
essential
ethical
euphoria
evasive
evoke
exacerbate
incongruous
instigate
intangible
integrity
intermittent
intervene
intimacy
intrepid
intricate
introspective
introverted
inundate
irate
irk
ironic
irrevocable
isolated (adj.)
issue (v.)
itinerary
jaunty
jovial
jubilant
longevity
loquacious
lucid
lucrative
ludicrous
lush
luxury
lyrical
maim
malfunction
malicious
malleable
mandate
manifest
manipulative
marginalized (adj.)
marred
materialistic
maturity
meager
mediate
hiatus
hierarchy
hinder
hone
hospitable
hostility
hubris
humanitarian
humility
linger
listless
litigation
loathing
lofty
menial
mercurial
meretricious
merit
metallic
methodical
meticulous
minute (adj.)
miserly
mishap
misleading (adj.)
mitigate
mollify
monopolize
morbid
morose
mortifying (adj.)
multifaceted
mundane
mutual
myriad
parsimony
pastoral
premise
preoccupied
preposterous
prestige
presumptuous
pretentious
reform
refute
regimen
relative (adj.)
optimal
optimism
opulence
orator
originate
ornate
oscillate
ostensible
ostentatious
ostracize
outdated
satirical
saturate
savory
savvy
scam
scarce
scathing
scheme
scrupulous
scrutinize
seclusion
secular
sedentary
segregation
selective
semblance
sensibility
sentimental
serene
servile
skeptical
slander
snobbish
solemn
sordid
sovereignty
speculative
sporadic
squander
stagnate
static
stationary
status quo
stigma
stipend
stoic
strenuous
sublime
submissive
subordinate
subside
substantiate
subtle
successive
succinct
succumb
suffice
sullen
superficial
superfluous
supposedly
surmise
vehement
venerable
venture
veracity
verbose
verdict
versatile
vicinity
vie
vigilant
vigor
vilify
vindicate
virulent
viscous
vital
vitriolic
vivid
volatile
vulnerable
wane
wary
weary
whimsical
willing
worldly
xenophobic
yield
zealous
zenith