# Vrais amis en anglais/Aa-Af

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# A

* A = A (lettre de l'alphabet)

# Aa

* aargh = aargh (interjection)

# Ab

* abaca = abaca
* abacus = abaque (1. graphe; 2. boulier compteur)
* abandon = abandon, abandonner
* abase = abaisser (sens moral)
* abatis ou abattis = abattis
* abattoir = abattoir
* Abbasid = Abbasside
* abbatial = abbatial
* abbé = abbé (français)
* abbess = abbesse
* Abbevillian = abbevillien (Archéol.)
* abbey = abbaye
* abbot = abbé (chef d'abbaye)
* abbreviate = abrévier
* abbreviation = abréviation
* ABC = ABC (alphabet)
* abdicate = abdiquer
* abdomen = abdomen
* abecedarian = abécédaire
* abelian = abélien (Math.)
* aberrant = aberrant
* aberration = aberration
* abhor = abhorrer
* ab initio = ab initio
* abiogenesis = abiogenèse
* abiotic = abiotique
* abject = abject
* abjure = abjurer
* Abkhaz = abkhaze
* Abkhazia = Abkhazie
* ablation = ablation
* ablative = ablatif
* ablative absolute = ablatif absolu
* ablution = ablution utilisé le plus souvent au pluriel dans les deux langues)
* abnegation = abnégation
* abnormal = anormal
* abnormality = anormalité
* aboard = à bord
* abolish = abolir
* abolition = abolition
* abolitionist = abolitionniste
* abominable = abominable
* abominate = abominer
* abomination = abomination
* aboriginal = aborigène
* abort = avorter
* abortive = abortif
* abounder = abonder
* ab ovo = ab ovo
* abracadabra = abracadabra
* abrade = abrader
* abrasion = abrasion
* abrasive = abrasif
* abreact = abréagir
* abreaction = abréaction
* abridge = abréger
* abrogate = abroger
* abrogation = abrogation
* abrupt = abrupt
* Abruzzi = Abruzzes
* abscess = abcès
* abscissa = abscisse
* absence = absence
* absent = absent
* absenteeism = absentéisme
* absinth = absinthe
* absolute = absolu
* absolute magnitude = magnitude absolue (Astron.)
* absolute majority = majorité absolue
* absolute temperature = température absolue
* absolute value = valeur absolue
* absolute zero = zéro absolu
* absolution = absolution
* absolutism = absolutisme
* absolve = absoudre
* absorb = absorber
* absorbed dose = dose absorbée (Phys.; Méd.)
* absorbent = absorbant (aussi: hydrophile)
* absorption = absorption
* absorption spectrum = spectre d'absorption (Spectrogr.)
* abstain = s'abstenir
* abstention = abstention
* abstinence = abstinence
* abstinent = abstinent
* abstract = abstrait, abstraire (sens plus vaste en anglais)
* absract art = art abstrait
* abstract expressionism = expressionnisme abstrait
* abstraction = abstraction
* abstruse = abstrus
* absurd = absurde
* absurdity = absurdité
* abulia or aboulia = aboulie
* abundance = abondance
* abundant = abondant
* abuse = abus, abuser
* abuser = abuseur
* abysm = abîme
* abysmal = abysmal
* abyss = abysse
* abyssal = abyssal

# Ac

* acacia = acacia
* academical = académique
* academician = académicien
* academicism = académisme
* academic year = année académique
* Académie française = Académie française
* academy = académie
* Acadia = Acadie
* Acadian = acadien
* acajou = acajou
* acalculia = acalculie
* Acanthocephala = acanthocéphales (Zool.)
* acanthus = acanthe; feuille d'acanthe
* a cappella = a cappella
* Acari ou Acarina = acariens (Zool.)
* accede = accéder
* accelerando = accelerando, accélérando
* accelerate = accélérer
* acceleration = accélération
* accelerator = accélérateur
* accelerometer = accéléromètre
* accent = accent, accentuer
* accented = accentué
* accentuate = accentuer
* accept = accepter
* acceptable = acceptable
* access = accès
* accessible = accessible
* accession = accession
* accessory = accessoire
* access time = temps d'accès (Inform.)
* accident = accident
* accidental = accidentel
* acclaim = acclamer
* acclamation = acclamation
* acclimate ou acclimatize = acclimater
* accolade = accolade
* accomodate = accommoder
* accompaniment = accompagnement (Mus.)
* accompany = accompagner
* accomplice = complice
* accomplish = accomplir
* accomplished = accompli
* accomplishment = accomplissement
* accord = accord, accorder
* accordion = accordéon
* accost = accoster
* accouchement = accouchement
* accoucheur = accoucheur (sage-femme mâle, sic)
* accoutrement = accoutrement
* accredit = accréditer
* accredited = accrédité
* accretion = accrétion
* acculturate = acculturer
* accumulate = accumuler
* accumulation = accumulation
* accumulator = accumulateur
* accusation = accusation
* accusative = accusatif
* accusatory = accusatoire
* accuse = accuser
* accused = accusé (Jur.: subst.)
* accustom = accoutumer
* ace = as (tous sens); ace (jeux de balle)
* acellular = acellulaire
* acentric = acentrique (Géométrie; Génétique)
* acephalous = acéphale
* acerbic ou acerb = acerbe
* acetaldehyde = acétaldéhyde
* acetate = acétate
* acetic acid = acide acétique
* acetone = acétone
* acetyl = acétyl-, acétyle
* acetylcholine = acétylcholine
* acetylcholinesterase = acétylcholinestérase
* acetyl coenzyme A = acétyl-coenzyme A (Biochim.)
* acetylene = acétylène
* acetylsalicylic acid = acide acétylsalicylique
* Achaean = achéen
* Achaemenid = achéménide
* Achernar = Achernar (Astron.)
* Acheulian = acheuléen (Archéol.)
* achillea = achillée
* Achilles = Achille
* Achilles tendon = tendon d'Achille
* achiral = achiral (Chim.)
* achondroplasia = achondroplasie (Méd.)
* achromatic = achromatique
* acid = acide
* acidify = acidifier
* acidimetry = acidimétrie
* acidity = acidité
* acidophil = acidophile (Physiol.; subst.)
* acidophilic = acidophile (Physiol.; adj.)
* acidosis = acidose
* acid salt = sel acide (Chim.)
* acidulous = acidulé
* acme = acmé (Hist. gr.: sommet)
* acne = acné
* acolyte = acolyte
* aconite = aconit
* aconitine = aconitine
* acoustic = acoustique
* acoustic coupler = coupleur acoustique
* acoustician = acousticien
* acquiesce = acquiescer
* acquire = acquérir
* acquired character ou acquired characteristic = caractère acquis
* acquired immune deficiency syndrome (AIDS) = syndrome immuno-déficitaire acquis (SIDA)
* acquisition = acquisition
* acquit = acquit (Comm.: subst.), acquitter (Jur.: vt)
* acre = acre (mesure agraire, obsolète dans les pays de langue française sauf au Canada)
* acrid = âcre
* acrimonious = acrimonieux
* acrimony = acrimonie
* acrobat = acrobate
* acrobatic = acrobatique
* acrocyanosis = acrocyanose (Méd.)
* acrolect = acrolecte (Ling.)
* acromegaly = acromégalie (Med., Anthropol.)
* acronym = acronyme
* acrophobia = acrophobie
* acropolis = acropole
* acrostic = acrostiche
* Acrux = Acrux (Astron.)
* acrylamide = acrylamide
* acrylic = acrylique
* acrylic acid = acide acrylique
* acrylonitrile = acrylonitrile
* Actaeon = Actéon
* actin = actine
* actinian = actinie
* actinic = actinique (Photo.)
* actinide = actinide (Chim.)
* actinium = actinium
* actinometer = actinomètre
* actinomycete = actinomycète (Microbiol.)
* action = action
* action at a distance = action à distance
* Action Directe = Action Directe
* Actium (Battle of) = Actium (Bataille d')
* activate = activer
* activated carbon ou active carbon = charbon actif, carbone actif
* activation energy = énergie d'activation (Chim.)
* active = actif
* activism = activisme
* activity = activité
* act of contrition = acte de contrition
* actomyosine = actomyosine (Biochim.)
* actor = acteur
* actress = actrice
* actuary = actuaire
* acuity = acuité
* acupuncture = acupuncture, acuponcture
* acute = aigu
* acute accent = accent aigu
* acyclic = acyclique
* acyl = acyle

# Ad

* adage = adage
* adagio = adagio
* adapt = adapter
* adaptable = adaptable
* adaptation = adaptation
* addendum = addendum
* addition = addition
* additional = additionnel
* addition reaction = réaction d'addition (Chim.)
* additive = additif (n. et adj.)
* address = adresse, adresser, s'adresser à
* adressable = adressable (Inform.)
* adductor = adducteur (Anat.)
* adenine = adénine
* adenocarcinoma = adénocarcinome (Méd.)
* adenosine = adénosine
* adenosine deaminase = adénosine-déaminase
* adenosine monophosphate = adénosine monophosphate
* adenosine triphosphate = adénosine triphosphate
* adenovirus = adénovirus
* adenylate cyclase = adénylate-cyclase
* adenylic acid = acide adénylique
* adept = adepte
* adequate = adéquat
* adhere = adhérer
* adherent = adhérent
* adherence = adhérence
* adhesion = adhésion
* adhesive = adhésif
* ad hoc = ad hoc
* ad hominem = ad hominem
* adiabatic = adiabatique
* adieu = adieu
* ad infinitum = ad infinitum
* ad interim = ad interim, ad intérim
* adipic acid = acide adipique (Chim.)
* adipocyte = adipocyte (Biol.)
* adipose = adipeux
* adjacent = adjacent
* adjective = adjectif
* adjoin = adjoindre
* adjourn = ajourner
* adjure = adjurer
* adjust = ajuster
* adjuvant = adjuvant
* ad libitum = ad libitum
* administer = administrer
* administration = administration
* administrative = administratif
* administrator = administrateur
* administratrix = administratrice (Dr. immob.)
* admirable = admirable
* admiral = amiral
* Admiral of the Fleet = Amiral de la Flotte (grade britannique équivalent à Amiral de France)
* Admiralty = Amirauté
* admiration = admiration
* admire = admirer
* admissible = admissible
* admission = admission
* admit = admettre
* admixture = admixtion
* admonition = admonition
* admonitory = admonitoire
* ad nauseam = ad nauseam
* adobe = adobe
* adolescence = adolescence
* adolescent = adolescent
* Adonai = Adonai (Théol. hébr.)
* Adonis = Adonis (Mythol. gr.)
* adopt = adopter
* adoption = adoption
* adoptive = adoptif
* adorable = adorable
* adore = adorer
* ad rem = ad rem (Philos.)
* adrenaline = adrénaline
* adrenergic = adrénergique (Neurophysiol.)
* adrenocorticotrophic hormone (ACTH) = hormone adrénocorticotrophique (ACTH)
* adret = adret (Géogr.)
* Adriatic = adriatique
* advance = avancer
* adrift = à la dérive
* adroit = adroit
* adsorb = adsorber
* adsorbate = adsorbat
* adsorbent = adsorbant
* adstratum = adstrat
* adulate = aduler
* adulation = adulation
* adult = adulte
* adulterant = adultérant
* adulterate = adultérer
* adulterine = adultérin
* advance = avance, avancer
* advanced = avancé (à un stage avancé)
* advance guard = avant-garde
* advantage = avantage
* advantaged = avantagé
* advection = advection
* advent = avènement
* Advent = Avent
* Adventist = adventiste
* adventure = aventure
* adventurer = aventurier
* adverb = adverbe
* adverbial = adverbial
* adversary = adversaire
* adversative = adversatif (Gramm.)
* adverse = adverse
* adversity = adversité
* advised = avisé
* advocaat = advocaat
* advocate = avocat (sauf Bot.)
* adytum = adytum (Archéol. gr.)

# Ae

* Aegean = égéen
* aegis = égide
* Aegisthus = Égisthe
* Aeneas = Énée
* Aeneid (the) = Énéide (l')
* aeolian = éolien
* aelioan harp = harpe éolienne
* Aeolus = Éole
* aerate = aérer
* aerie ou eyrie = aire (d'un aigle)
* aerobic = aérobique (Microbiol. et Physiol.)
* aerodrome = aérodrome
* aerodynamic = aérodynamique (adj.)
* aerodynamics = aérodynamique (n.f.)
* aerogram = aérogramme (Postes)
* aeromodelling = aéromodélisme
* aeronaut = aéronaute
* aeronautic ou aeronautical = aéronautique (adj.)
* aeronautics = aéronautique (n.f.)
* aerophagy = aérophagie
* aeroplane = aéroplane
* aerosol = aérosol
* aerostat = aérostat
* Aeschylus = Eschyle
* Aesculapian = esculapien, d'Esculape
* Aesop = Ésope
* aesthete ou esthete = esthète
* aesthetic ou esthetic = esthétique (adj.)
* aesthetics ou esthetics = esthétique (n.f.)
* aestival ou estival = estival
* aestivation ou estivation = estivation (Zool.)
* aetiology ou etiology = étiologie

# Af

* Afar = afar (Anthropol.)
* affable = affable
* affairé = affairé
* affect = affecter (1. avoir une influence; 2. faire semblant); affect (Psychol.)
* affectation = affectation
* affected = affecté
* affection = affection
* affectionate = affectionné
* affective = affectif
* afferent = afférent (Physiol.)
* affiliation = affiliation
* affine = affine (Géom.; en Belg. aussi "affin")
* affinity = affinité
* affirm = affirmer
* affirmation = affirmation
* affirmative = affirmatif
* afflux = afflux
* affricate = affriqué (Phon.)
* affront = affront
* Afghan = afghan
* Aghanistan = Afghanistan
* aficionado = aficionado
* afloat = à flot
* a fortiori = a fortiori
* afreet ou afrit = efrit (Mythol. arabo-persane)
* Africa = Afrique
* African = africain
* African elephant = éléphant d'Afrique
* Afrikaans = afrikaans
* Afro = afro (style de chevelure)
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