- alternative hypothesis
- Alternative Investment Market
- alternatively
- alternative medicine
- alternative music
- alternative pathway
- alternative question
- alternative school
- alternative society
- Alternative Vote
- alternator
- Altgeld
- althaea
- Althaea
- althea
- Althea
- Althing
- altho
- althorn
- Althorp House
- although
- Althusser
- alti-
- altigraph
- altiloquent
- altimeter
- altimetry
- altiplano
- Altiplano
- altissimo
- altitude
- altitude chamber
- altitude dial
- altitude sickness
- altitudinal
- Alt key
- alt-left
- Altman
- alto
- alto-
- alto clef
- altocumulus
- alto flute
- altogether
- alto horn
- altoist
- Alton
- Altona
- Alton Towers
- Altoona
- alto-relievo
- altostratus
- altrices
- altricial
- alt-right
- Altrincham
- alt-rock
- altruism
- altruist
- altruistic
- alt text
- Altus
- ALU
- aludel
- alula
- alum
- alum.
- alumin-
- alumina
- alumina cement
- aluminate
- aluminiferous
- aluminite
- aluminium
- aluminium bronze
- aluminium hydroxide
- aluminium oxide
- aluminium sulphate
- aluminize
- alumino-
- aluminography
- aluminosilicate
- aluminothermy
- aluminous
- aluminous cement
- aluminum
- aluminum acetate
- aluminum ammonium sulfate
- aluminum borate
- aluminum borohydride
- aluminum brass
- aluminum bronze
- aluminum carbide
- aluminum chloride
- aluminum fluosilicate
- aluminum glycinate
- aluminum hydroxide
- aluminum monostearate
- aluminum nitrate
- aluminum oxide
- aluminum plant
- aluminum silicate
- aluminum soap
- aluminum sulfate
- alumna
- alumni
- alumnus
- alumnx
- Alum Rock
- alumroot
- Alundum
- alunite
- alunogen
- alure
- alutaceous
- Alva
- Alvar
- Alvarado
- Alvarez
- Alvarez hypothesis
- Álvarez Quintero
- Alvaro
- alveated
- alveol-
- alveola
- alveolar
- alveolar arch
- alveolar ridge
- alveolate
- alveolo-
- alveolus
- alveopalatal
- Alvin
- alvine
- Alvira
- alway
- always
- Alwin
- Alwyn
- Alyattes
- Alyce
- Alyce clover
- Alyson
- alyssum
- Alzheimer's disease
- al-ʿUzza
- Alˈbanian
- Alˈbertan
- à l’américaine
- am
- Am
- AM
- am/fm
- Am.
- ama
- AMA
- AMAB
- Amabelle
- Amabokoboko
- amadan
- amadavat
- Amadis
- Amadis of Gaul
- Amado
- amadoda
- Amador Guerrero
- amadou
- Amagasaki
- amah
- amain
- A major
- amakihi
- Amakrokokroko
- amakwerekwere
- amal.
- amalaka
- Amalek
- Amalekite
- Amalfi
- amalgagender
- amalgam
- amalgamate
- amalgamation
- Amalia
- Amalthaea
- Amalthea
- aman
- A man's home is his castle
- a man's reach should exceed his grasp
- Amana Church Society
- Amanda
- amandine
- amandla
- A man is known by the company he keeps
- amanita
- Amanite
- amantadine
- amanuensis
- Amanullah Khan
- Amapá
- amaranth
- amaranthaceous
- amaranth family
- amaranthine
- amarelle
- amaretti
- amaretto
- Amarillo
- Amarna
- amaryllidaceous
- amaryllis
- Amaryllis
- amaryllis family
- Amarynceus
- Amasa
- amass
- amassed
- Amata
- amate
- Amaterasu
- amateur
- amateurish
- amateurism
- amateur night
- Amati
- amative
- Amato
- amatol
- amatory
- amatungula
- amaurosis
- amaut
- amaze
- amazeballs
- amazed
- amazement
- Amaziah
- amazing
- amazon
- Amazon
- amazon ant
- Amazon ant
- Amazonas
- Amazon cherry
- Amazonia
- Amazonian
- Amazonis
- amazonite
- Amazon parrot
- Amazon River
- Amazons
- Amb.
- ambages
- ambagious
- Ambala
- ambarella
- Ambartsumian
- ambary
- ambassador
- ambassador-at-large
- Ambassadors, The
- ambassadorship
- ambassadress
- ambatch
- Ambato
- Ambedkar
- ambeer
- amber
- Amber
- Amber alert
- Amber Alert
- amberfish
- amber fluid
- amber gambler
- ambergris
- amberina
- Amber Islands
- amberjack
- amberoid
- ambi-
- ambiance
- ambidentate
- ambidexter
- ambidexterity
- ambidextrous
- Ambien
- ambience
- ambient
- ambient air standard
- ambiente
- ambient music
- ambient noise
- ambient temperature
- ambigram
- ambiguity
- ambiguous
- ambilateral
- ambiophony
- ambipolar
- ambira
