- antihuman
- antihydrogen
- antihypertensive
- antiknock
- antilegomena
- antilepton
- antilife
- antilock
- antilock brake
- antilog
- antilogarithm
- antilogism
- antilogy
- antimacassar
- antimagnetic
- antimalarial
- antimanic
- antimask
- antimasque
- antimatter
- antimension
- antimere
- antimeridian
- antimetabolite
- antimicrobial
- antimilitant
- antimissile
- antimissile missile
- antimitotic
- antimonarchist
- antimonate
- antimonial
- antimonic
- antimonide
- antimonous
- antimonsoon
- antimony
- antimony 124
- antimony hydride
- antimony oxychloride
- antimony pentasulfide
- antimony pentoxide
- antimony potassium tartrate
- antimony sulfate
- antimony sulfide
- antimony trifluoride
- antimony trisulfide
- antimony yellow
- antimonyl
- antimuon
- antimutagen
- antimutagenic
- antimycotic
- antinationalist
- antineoplastic
- antineutrino
- antineutron
- anting
- antinode
- antinoise
- antinome
- antinomian
- antinomianism
- antinomy
- antinovel
- antinuclear
- antinucleon
- antinuke
- antinutrient
- antiodontalgic
- antioxidant
- antiozonant
- antiparabema
- antiparallel
- antiparticle
- antipasto
- antipathetic
- antipathy
- antipedal
- antiperiodic
- antiperistalsis
- antipersonnel
- antiperspirant
- antiphlogistic
- antiphon
- antiphonal
- antiphonary
- antiphony
- antiphrasis
- antiplastic
- antipodal
- antipode
- antipodean
- antipodes
- antipoetic
- antipole
- antipollution
- antipope
- antipoverty
- antiproliferation
- antiproliferative
- antiproton
- antipruritic
- antipsychiatry
- antipsychotic
- antipyretic
- antipyrine
- antipyrotic
- antiq.
- antiquarian
- antiquark
- antiquary
- antiquate
- antiquated
- antique
- antique glass
- antiquer
- antiquey
- antiquing
- antiquities
- antiquity
- antirachitic
- antiracism
- antiradical
- antirecessionary
- antireflection coating
- antireflexive
- antirejection
- antireligious
- antirent
- antirepublican
- antiresonance
- antiretroviral
- antiriot
- antiroll bar
- antirrhinum
- antirust
- antisatellite
- antiscientific
- antiscorbutic
- antiselection
- antisemite
- antisemitic
- antisemitism
- antisense
- antisense RNA
- antisepsis
- antiseptic
- antiseptically
- antisepticize
- antiseptics
- antiserum
- antisexist
- antishake
- antiskating
- antiskid
- antislavery
- antismog
- antismoking
- antisocial
- antisocial personality
- antisocial personality disorder
- antisocialist
- antisolar
- antispasmodic
- antistat
- antistatic
- antistory
- antistrophe
- antisubmarine
- antisudorific
- antisway bar
- antisymmetric
- antitank
- antiterrorist
- antitheft
- antithesis
- antithetical
- antithrombin
- antithrombotic
- antitorque rotor
- antitoxic
- antitoxin
- antitrade
- antitrades
- antitragus
- antitranspirant
- antitrust
- antitrust legislation
- antitruster
- antitussive
- antitwilight arch
- antitype
- antiunion
- antiutopia
- antivaccination
- antivax
- antivaxxer
- antivenin
- antivenom
- antiviral
- antivirus
- antivitamin
- antivivisection
- antivivisectionist
- antiwar
- antiwhite
- antiwork
- antiwork movement
- antiworld
- antixerophthalmic vitamin
- anti–
- antler
- antler moth
- antlered
- antlerite
- antlike
- antlion
- antoninianus
- antonomasia
- antonym
- antonyms
- antre
- antrorse
- antrum
- ants in one's pants, have
- antshrike
- antsy
- antwackie
- antwren
- anucleate
- anucleolate
- anumeric
- anuran
- anuresis
- anuria
- anurous
- anus
- anvil
- anxiety
- anxiety disorder
- anxiety neurosis
- anxiolytic
- anxious
- anxious seat
- anxiously
- anxiousness
- any
- any day
- any longer
- any more
- any number of
- any old
- any port in a storm
- anybody
- anyhoo
- anyhow
- anymore
- anyon
- anyone
- anyone's guess
- anyplace
- anyroad
- anything
- anything but
- anything goes
- anything like
- anytime
- anyway
- anyways
- anywhere
- anywheres
- anywise
- anˈnoying
- anˌnihiˈlation
- anˌtagoˈnistic
- ao
- ao dai
- aole
- aor
- aorist
- aoristic
- aorta
- aortic arch
- aortic insufficiency
- aortic stenosis
- aortic valve
- aortitis
- aortoclasia
- aortography
- aoudad
- ap
- ap-
- apa
- apace
- apache
- apache dance
- apanage
- apapane
- aparavidya