Definition of pre-
1 a (1)
:earlier than :prior to :before
- Precambrian
- prehistoric
(2)
:preparatory or prerequisite to
- premedical
b
:in advance :beforehand
- precancel
- prepay
2
:in front of :anterior to
- preaxial
- premolar
- preadmission
- preadult
- preagricultural
- preanesthetic
- preannounce
- preapprove
- prearrange
- prearrangement
- preassembled
- preassign
- prebake
- prebattle
- prebiblical
- prebook
- prebreakfast
- precapitalist
- prechill
- pre–Christmas
- preclearance
- precode
- precoital
- precollege
- precollegiate
- precolonial
- precombustion
- precommitment
- precompute
- precomputer
- preconcert
- preconciliar
- preconquest
- preconsonantal
- preconstructed
- preconvention
- preconviction
- precool
- precopulatory
- precrash
- precrease
- precrisis
- precut
- predawn
- predefine
- predelivery
- predeparture
- predesignate
- predevaluation
- predevelopment
- predinner
- predischarge
- prediscovery
- predive
- predraft
- predrill
- predynastic
- preelection
- preelectric
- preelectronic
- preembargo
- preemployment
- preenrollment
- preerect
- preestablish
- preethical
- preexperiment
- prefade
- prefascist
- prefeminist
- prefeudal
- prefight
- prefile
- prefilled
- prefinance
- prefire
- preflame
- preformat
- preformulate
- prefreshman
- prefrozen
- pregenital
- preharvest
- preheadache
- prehiring
- preholiday
- preinaugural
- preincorporation
- preinduction
- preindustrial
- preinterview
- preinvasion
- prekindergarten
- prelaunch
- prelife
- preliterary
- prelogical
- prelunch
- preluncheon
- premade
- premanufacture
- premarital
- premaritally
- premarketing
- premarriage
- premeal
- premeasure
- premedieval
- premeet
- premeiotic
- premenopausal
- premerger
- premigration
- premodern
- premodification
- premodify
- premoisten
- premold
- premolt
- premoral
- premycotic
- prenoon
- prenotification
- prenotify
- prenumber
- preopening
- preoperational
- preorder
- prepaste
- preperformance
- prepill
- preplan
- preportion
- preprepared
- prepresidential
- prepress
- preprice
- preprimary
- preproduction
- preprogram
- prepsychedelic
- prepublication
- prepunch
- prepupal
- prepurchase
- prequalification
- prequalify
- prerace
- prerecession
- prerecorded
- prerehearsal
- prerelease
- prerequire
- preretirement
- prereturn
- prereview
- prerevisionist
- prerevolution
- prerevolutionary
- prerinse
- preriot
- prerock
- preromantic
- presale
- preschedule
- prescreen
- preseason
- presentence
- presentencing
- preservice
- presettlement
- preshow
- preslaughter
- presleep
- preslice
- presong
- prespecify
- presplit
- prestamp
- presterilize
- prestorage
- prestrike
- prestructure
- presummit
- presurgery
- presweeten
- presymptomatic
- pretape
- pretax
- pretechnological
- pretelevision
- pretermination
- pretheater
- pretournament
- pretrain
- pretravel
- pretreat
- pretreatment
- pretrial
- pretrimmed
- pretype
- preunification
- preuniversity
- previable
- prewar
- prewarn
- prewash
- preweaning
- prework
- prewrap
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