- re-claim
- reclaimant
- reclamation
- réclame
- reclassification
- reclassify
- reclearance
- reclinate
- recline
- recliner
- reclosable
- recluse
- reclusion
- recode
- recognition
- recognizance
- recognize
- recognizee
- recognizor
- recoil
- re-coil
- recoil escapement
- recoilless
- recoil-operated
- recollect
- re-collect
- recollected
- recollection
- re-collection
- récolte
- recombinant
- recombinant DNA
- recombinant DNA technology
- recombination
- recombine
- recommence
- recommend
- recommendation
- recommendatory
- recommended dietary allowance
- recommit
- recompense
- recompose
- recompression chamber
- recon
- reconcentration
- reconcilable
- reconcile
- reconciliate
- reconciliation
- Reconciliation
- reconciliatory
- recondite
- recondition
- reconfiguration
- reconfigure
- reconfirm
- reconnaissance
- reconnaissance car
- reconnaissance satellite
- reconnect
- reconnection
- reconnoiter
- reconnoitre
- reconquer
- reconsider
- reconsignment
- reconstitute
- reconstituted
- reconstitution
- reconstruct
- reconstruction
- Reconstruction
- Reconstruction Acts
- Reconstructionism
- Reconstructionist
- reconstructive
- reconstructive surgery
- reconvene
- reconvention
- reconvert
- reconvey
- record
- recordation
- record-breaking
- record changer
- record-changer
- recorded delivery
- recorder
- recordholder
- recording
- Recording Angel
- recording head
- recording secretary
- recordist
- recordkeeping
- record label
- record of achievement
- record player
- reco-reco
- recount
- re-count
- recountal
- recoup
- recoupment
- recourse
- recover
- re-cover
- recoverable
- recoverable error
- recovered memory
- recovery
- recovery room
- recovery stock
- recpt
- recreant
- recreate
- re-create
- recreation
- re-creation
- recreational
- recreationalist
- recreationally
- recreational vehicle
- recreation ground
- recreationist
- recreation room
- recrement
- recriminate
- recrimination
- rec room
- recross
- recrudesce
- recrudescence
- recrudescent
- recruit
- recruiter
- recruitment
- recrystallize
- rect
- rect-
- rect.
- recta
- rectal
- rectangle
- rectangular
- rectangular coordinate
- rectangular coordinates
- rectangular hyperbola
- rectenna
- recti
- recti-
- rectifiable
- rectification
- rectified
- rectified spirit
- rectifier
- rectify
- rectilinear
- rectirostral
- rectitude
- rectitudinous
- recto
- rectocele
- rector
- rectorate
- rectory
- rectrix
- rectum
- rectus
- recumbent
- recumbent bicycle
- recuperate
- recuperation
- recuperative
- recuperative furnace
- recuperator
- recur
- recurrence
- recurrent
- recurrent fever
- recurring
- recurring decimal
- recursion
- recursion formula
- recursive
- recursive definition
- recursive function
- recursive subroutine
- recurvate
- recurve
- recurved
- recusal
- recusancy
- recusant
- recuse
- recut
- recyclable
- recycle
- recycler
- recycling
- red
- Red
- red-
- redact
- redacted
- redaction
- red admiral
- red alder
- red alert
- red alga
- red algae
- redan
- Red and the Black, The
- Red Angus
- red ant
- redargue
- Red Army
- Red Army Faction
- redback
- red-backed shrike
- red-back spider
- Red Badge of Courage, The
- red bag
- redbait
- Red Bank
- Redbank Whiteoak
- red bark
- red bay
- red beds
- red-bellied black snake
- red-bellied turtle
- redbelly dace
- red biddy
- red birch
- redbird
- red blood cell
- red blood cells
- red-blooded
- redbone
- red book
- Red Branch
- red brass
- redbreast
- redbrick
- redbrick university
- Redbridge
- Red Brigades
- redbud
- redbug
- red cabbage
- redcap
- Redcar
- Redcar and Cleveland
- red card
- red carpet
- red cedar
- red cell
- red cent
- Red Chamber
- Red China
- red clay
- Redcloud Peak
- red clover
- red cluster pepper
- redcoat
- red cod
- red coral
- red corpuscle
- red count
- Red Crescent
- Red Cross
- Red Cross, International
- redcurrant
- red currant
- redd
- red deer
- Red Deer
- Red Deer River
- Red Delicious
- redden
- red devil
- Redding
- reddish
- Redditch
- reddle
- reddleman
- red dog
- red-dog
- red dogwood
- red doll
- red drum
- red duster
- red dwarf
- rede
- redear sunfish
- red earth
- redecorate
- rededicate
- redeem
