OpenEtymology

WORD FAMILIES

One root. A family of words.

Connect words through shared components and learn them together.

2004 word families

reed3 related words

plant

reed-thin · reedy
reel3 related words

spool

newsreel · reel · reel-to-reel
reform3 related words

change

pro-reform · reform · welfare-reform
refut2 related words

to disprove

irrefutable · irrefutably
reg29 related words

rule; straight

anorectal · correct · corrected
regi3 related words

rule

regimen · regiment
region16 related words

area

bioregion · bioregional · ecoregion
registration2 related words

act of recording

pre-registration · re-registration
regular4 related words

standard

regular · regular-season · regular-size
regulate3 related words

control

deregulate · over-regulate · regulate
relation8 related words

connection

correlation · correlational · interrelation
release4 related words

to set free

catch-and-release · quick-release · re-release
relevant3 related words

pertinent

irrelevant · relevant · relevantly
reliance2 related words

dependence

over-reliance · self-reliance
religion4 related words

system of faith

anti-religion · religionist
remote3 related words

distant

remote · remote-control · remote-sensing
rent5 related words

payment

rent · rent-free · rental
repair5 related words

to fix

disrepair · repairable · repairman
repeat4 related words

to do again

repeat · repeatability · repeatable
report5 related words

give an account

misreport · report · underreport
represent7 related words

depict

misrepresent · misrepresentation · nonrepresentational
rept2 related words

to seize

surreptitious · surreptitiously
republic2 related words

state

republican · republicanism
resist3 related words

withstand

irresistible · irresistibly · resist
resolution3 related words

clarity

high-resolution · higher-resolution · resolution
respect6 related words

regard

disrespect · disrespected · disrespectful
retro11 related words

backwards

retro · retroactive · retroactively
revenue3 related words

income

non-revenue · revenue · revenue-sharing
rheumat4 related words

flow

rheumatoid · rheumatologist · rheumatology
rhino4 related words

nose

rhinoplasty · rhinorrhea
rhythm7 related words

rhythm

eurhythmics · polyrhythmic · rhythmic
ribbon4 related words

strip of fabric

beribboned · blue-ribbon · ribboned
rich13 related words

abundant

carbon-rich · feature-rich · metal-rich
rights4 related words

entitlements

civil-rights · gun-rights · rights-based
rigid3 related words

stiff

rigidity · rigidly · semi-rigid
rise3 related words

to ascend

low-rise · rise · sunrise
risk15 related words

danger

health-risk · high-risk · higher-risk
rit5 related words

excite

irritant · irritated · irritating
rival4 related words

competitor

archrival · unrivaled · unrivalled
river7 related words

watercourse

river-bottom · riverbank · riverboat
rivet2 related words

to fasten

riveted · riveting
roast3 related words

to cook with dry heat

roast · roasted · roasting
robe2 related words

garment

bathrobe · wardrobe
robed2 related words

clothed

black-robed · white-robed
robor4 related words

strength

corroborate · corroborating · corroboration
robot2 related words

automated machine

robotic · robotics
robust2 related words

strong

robusta · robustness
rode2 related words

gnaw

corrode · erode
rog14 related words

ask

abrogate · arrogant · arrogate
rol2 related words

roll

enrol · enrolment
role3 related words

character

role · role-model · role-play
rom2 related words

acronym

cd-rom · dvd-rom
romantic3 related words

pertaining to romance

romantic · romanticist · romanticize
roost3 related words

perch

roost · roosted · roosting
root14 related words

base

root-knot · rooted · rootedness
rope4 related words

cord

jump-rope · rope · rope-like
rose4 related words

the flower

rose · rose-pink · roseate
rough6 related words

coarse

rough · rough-and-ready · rough-cut
routine3 related words

regular procedure

nonroutine · routinely
row6 related words

line

front-row · hedgerow · row

Families include roots and modern derivations. These learning connections do not imply that every member has exactly the same historical origin.

Roots and word families · 英语词根词缀查询 | OpenEtymology