improver
abetter
abettor
improving
meliorator
nonimprover
shape up
contributory
improvingly
beneficial
upfitter
influencer
boost
furtherer
incenser
well-wisher
facilitation
social climber
enabler
difference maker
ameliorator
gadfly
reinforcer
fosteringly
improvement
fomenter
self-help
edify
instrument
misfactor
gild the lily
weakener
progressive
incentivizer
good
equipper
-lord
ameliorant
correctionist
obliger
easer
enhancer
accommodator
changer
abet
corrective
satisfier
affecter
assistant
morale builder
propitiator
do-goodery
ray of light
edifying
lifesaver
beneficence
role model
water to one's mill
mitigator
success story
augmenter
help
palliator
aid
assistance
enlightening
grip
saint
rine
undertaker
sarpork
assimilator
sustain
energizer
huckleberry above a persimmon
fluffer
good person
hell of a
incentively
quality of life
reactor
miscreator
reactivator
causer
risker
ameliorative
assurer
modifier
value-add
ameliorability
social climbing
tend
do-gooding
finesser
golden ticket
answerer
engenderer
judge
improving
beneficial
edifying
enlightening
hell of a
improvingly
fosteringly
incentively
improver
abetter
abettor
meliorator
nonimprover
contributory
upfitter
influencer
boost
furtherer
incenser
well-wisher
facilitation
social climber
enabler
difference maker
ameliorator
gadfly
reinforcer
improvement
fomenter
self-help
instrument
misfactor
weakener
progressive
incentivizer
equipper
ameliorant
correctionist
obliger
easer
enhancer
accommodator
changer
corrective
satisfier
affecter
assistant
morale builder
propitiator
do-goodery
ray of light
lifesaver
beneficence
role model
water to one's mill
mitigator
success story
augmenter
help
palliator
aid
assistance
grip
saint
undertaker
assimilator
energizer
fluffer
good person
quality of life
reactor
miscreator
reactivator
causer
risker
ameliorative
assurer
beneficial
modifier
value-add
ameliorability
social climbing
do-gooding
finesser
golden ticket
answerer
engenderer
judge
shape up
edify
gild the lily
good
abet
rine
sarpork
sustain
tend
boost
English words for 'Something that, or someone who, improves something.'
As you may have noticed, above you will find words for "Something that, or someone who, improves something.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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one down
observation post
Unimaginative
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training school
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corrosive
to be daunted
premature ejaculation
satellite link
unenthusiastic
wall tiles
geomorphology
cosmos
CM
of terrestrial origin.
Knightly
extreme heat
one sheet
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social life
ancient language
bloodless
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splendid.
moat
surmise
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guardianship
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prepayment
A blow
any salt containing this ion