3000 từ tiếng Anh thông dụng

Race	Regular	Rest
Racing	Regularly	Restaurant
Radio	Regulation	Restore
Rail	Reject	Restrict
Railway	Relate	Restriction
Rain	Related	Result
Raise	Relation	Retain
Range	Relationship	Retire
Rapid	Relative	Retired
Rapidly	Relatively	Retirement
Rare	Relax	Return
Rarely	Relaxed	Reveal
Rate	Relaxing	Reverse
Rather	Release	Review
Raw	Relevant	Revise
Reach	Relief	Revision
React	Religion	Revolution
Reaction	Religious	Reward
Read	Rely	Rhythm
Reader	Remain	Rich
Reading	Remaining	Ride
Ready	Remark	Ridiculous
Real	Remarkable	Right
Realistic	Remarkably	Ring
Reality	Remember	Rise
Realize	Remind	Risk
Really	Remote	Rival
Rear	Remove	River
Reason	Rent	Rob
Reasonable	Repair	Rock
Recall	Repeat	Role
Receipt	Repeated	Roll
Receive	Repeatedly	Romantic
Recent	Replace	Roof
Recently	Reply	Room
Reception	Report	Root
Recognition	Represent	Rope
Recognize	Representative	Rough
Recommend	Reputation	Roughly
Record	Request	Round
Recover	Require	Route
Red	Requirement	Routine
Reduce	Rescue	Royal
Reduction	Research	Rubber
Refer	Reservation	Rubbish
Reflect	Reserve	Rude
Reform	Resident	Rudely
Refrigerator	Resist	Ruin
Refusal	Resolve	Rule
Refuse	Resort	Ruler
Regard	Resource	Rumor
Regarding	Respect	Run
Region	Respond	Running
Regional	Response	Rural
Register	Responsibility	Rush
Regret	Responsible