- auto caption
- auto court
- auto lift
- auto racing
- auto-
- auto-da-fé
- auto-destruct
- auto-populate
- auto-repeat
- auto.
- autoallogamy
- autoanalysis
- autoanalyzer
- autoantibody
- autoantigen
- autobahn
- autobio
- autobiog
- autobiographical
- autobiography
- autobus
- autocade
- autocatalysis
- autocatharsis
- autocephalous
- autocephaly
- autochanger
- autochrome
- autochthon
- autochthonous
- autocidal
- autocide
- autoclave
- autocollimation
- autocollimator
- autocomplete
- autocorrelation
- autocracy
- autocrat
- autocratic
- autocross
- autocutie
- autocycle
- autodestruct
- autodial
- autodialer
- autodidact
- autodidactic
- autodidacticism
- autodyne
- autoecious
- autoecism
- autoerotic
- autoerotic asphyxia
- autoeroticism
- autoexposure
- autofiction
- autofill
- autofocus
- autogamy
- autogenesis
- autogenetic
- autogenic training
- autogenous
- autogiro
- autogolpe
- autograft
- autograph
- autography
- autohypnosis
- autoicous
- autoignition
- autoignition point
- autoimmune
- autoimmune disease
- autoimmunization
- autoinfection
- autoinoculation
- autointoxication
- autoionization
- autoist
- autojumble
- autokinesis
- autokinetic
- autokinetic effect
- autokinetic phenomenon
- autolithography
- autoloader
- autoloading
- autologous
- autolysate
- autolyse
- autolysin
- autolysis
- autolyze
- automagical
- automagically
- automaker
- automanipulation
- automat
- automata
- automata theory
- automate
- automated clearing house
- automated teller machine
- automated-teller machine
- automatic
- automatic camera
- automatic door
- automatic exposure
- automatic focus
- automatic frequency control
- automatic gain control
- automatic pilot
- automatic pistol
- automatic redial
- automatic repeat
- automatic rifle
- automatic runner
- automatic speech recognition
- automatic tracking
- automatic transmission
- automatic vending
- automatic writing
- automatically
- automaticity
- automation
- automatism
- automatize
- automatograph
- automaton
- automechanism
- autometer
- automobile
- automobile insurance
- automobilia
- automorphic
- automorphism
- automotive
- autonomic
- autonomic nervous system
- autonomics
- autonomism
- autonomous
- autonomous phoneme
- autonomous syntax
- autonomously
- autonomy
- autonym
- autooxidation
- autopay
- autopen
- autophagia
- autophyte
- autopilot
- autopista
- autoplast
- autoplasty
- autopolyploid
- autopotamic
- autopsy
- autoput
- autoradiograph
- autoradiography
- autoregulation
- autorickshaw
- autoromantic
- autorotation
- autoroute
- autosave
- autoschediasm
- autosensitization
- autosexing
- autosexual
- autosomal
- autosome
- autospore
- autostability
- autostrada
- autosuggestion
- autotelic
- autotimer
- autotomize
- autotomy
- autotoxaemia
- autotoxemia
- autotoxicosis
- autotoxin
- autotransformer
- autotransfusion
- autotransplant
- autotroph
- autotrophic
- autotruck
- autotune
- autotype
- autowinder
- autoworker
- autoxidation
- autres temps, autres mœurs
- autumn
- autumn crocus
- autumnal
- autumnal equinox
- autunite
- aux
- aux-
- auxanometer
- auxesis
- auxetic
- auxiliaries
- auxiliary
- auxiliary language
- auxiliary note
- auxiliary power unit
- auxiliary rafter
- auxiliary rotor
- auxiliary tone
- auxiliary verb
- auxilytic
- auxin
- auxo-
- auxocardia
- auxochrome
- auxocyte
- auxospore
- auxotonic
- auxotroph
- av.
- ava
- avadavat
- avail
- avail oneself of
- availability
- available
- available light
- avalanche
- avalanche lily
- avalanche wind
- avant-
- avant-garde
- avant-gardism
- avantist
- avarice
- avaricious
- avascular
- avast
- avatar
- avaunt
- avdp.
- ave
- ave atque vale
- avec plaisir
- avel
- avenaceous
- avenge
- avenger
- avens
- aventail
- aventurine
- avenue
- aver
- average
- average adjuster
- average deviation
- average joe
- average life
- average revenue
- average speed
- averaging light meter
- averment
- averse
- aversion
- aversion therapy
- aversive
- aversive conditioning
- avert
- averted
- avg.
- avgas
- avgolemono
- avi-
- avian
- avian flu
- avian influenza
- avianize
- aviarist
- aviary
- aviate
- aviation
- aviation cadet
- aviation medicine
- aviator
- aviator glasses
- aviatrix
- avicularium
- aviculture
- avid
- avidin
- avidity