A&A officer
ablative armor
absorbed
absorption chamber
access terminal
access tunnel
acetylcholine
acting captain
active-scan navigation
adaptive interface link
Advanced Tactical Training
Agaron
Age of Ascension, Klingon
Age of Inclusion, Klingon
Agents 201 and 347
ages of Tkon
agonizer
agony booth
Agosoria
ahdar
ahn-woon
air tram
airlock
airponics bay
Ak'la bella doo
Akaali
Akira-class starship
Alameda
Albeni meditation crystal
Alcyones
Aldea
Aldeans
Aldebaran
Aldebaran Music Academy
Aldebaran serpent
Alfa 117
Algeron IV
Algeron, Treaty of
Algorian mammoth
Alice in Wonderland
allasomorph
Alliance
Alliance for Global Unity
Alpha Carinae II
Alpha Carinae V
Alpha Centauri
Alpha III, Statues of
Alpha Majoris I
Alpha Proxima II
alpha quadrant
Alpha V Colony
alpha wave inducer
Altair III
Altair VI
Altair water
Altarian Conference
Altarian marsupial
Altec
Alterian chowder
Amar, I.K.S.
Amazon University
Ambassador-class starship
amoeba
amusement park planet
Anbo-jytsu
Anchilles fever
Andonian tea
Andoria
Andorian Empire
Andorian Imperial Guard
Andorian redbat
Andorian transport
andorian tuber root
Andorian zabathu
Andorians
android
Andromeda Galaxy
Andronesian encephalitis
anesthizine
Angel One
annual physicals
annular confinement beam
Antarans
Antarean brandy
Antares, U.S.S.
Antarian glow water
Antede III
Antedean ambassador
Antedeans
anti-time
Antica
Anticans
antigrav
antigraviton
antimatter
antimatter containment
antimatter containment breach
antimatter containment failure
antimatter containment field
antimatter containment pod
antimatter flow convertor
antimatter injector
antimatter mines
antimatter pod
antimatter spread
antiproton
Antos IV
Antwerp Conference
Arachnid Nebula
Arawath Colony
Arbiter of Succession
arch
Archanis
Archanis IV
archon
Archon, U.S.S.
Archons
Ardana
Ardanan shuttle
Argelians
Argelius
Argus River region
Ariannus
Aries, U.S.S.
Arkonians
Arloff IV
Armens, Treaty of
armory
Armstrong, Lake
Armus IX
Arneb
array
Arsenal of Freedom
Artemis, S.S.
Articles of Jurisprudence
Arvada III
assignment
astatine
asteroid belt
asteroid field
Astral Queen
Astrometrics
atavachron
Atifs IV
atmospheric dissipation
attack pattern
AU
audet IX
Aurora
autodestruct sequence
automatic flight control
automatic helm control
autoshutdown sequence
auxiliary control
auxiliary power
Avidyne engines
away mission
away team
Axanar
Axanars
axionic chip network