- addenda
- addendum
- adder
- adder's-meat
- adder's-mouth
- adder's-tongue
- Adderall
- Adderley
- add fuel to the fire
- addict
- addicted
- addiction
- addictive
- Addie
- add-in
- adding
- adding machine
- Addington
- add insult to injury
- addio
- Addis Ababa
- Addison
- Addison's disease
- Addisonian
- additament
- addition
- additional
- additionality
- Additional Member System
- addition polymer
- addition reaction
- additive
- additive color
- additive group
- additive identity
- additive inverse
- additive process
- additory
- addle
- addlebrained
- addled
- addlepated
- addn.
- addnl.
- add-on
- address
- addressable
- address bar
- addressee
- addressing machine
- Addressograph
- adduce
- adducent
- adduct
- adduction
- adductor
- add up
- add up to
- addy
- Ade
- adeem
- Adelaide
- adelantado
- Adele
- adelgid
- Adélie Coast
- Adélie Land
- Adélie penguin
- Adeline
- adelphopoiesis
- ademption
- Aden
- aden-
- Adenauer
- adenectomy
- Adenese
- Adeni
- adenine
- adenitis
- adeno-
- adenocarcinoma
- adenohypophysis
- adenoid
- adenoidal
- adenoidectomy
- adenoiditis
- adenoids
- adenology
- adenoma
- adenopathy
- adenosarcoma
- adenosine
- adenosine cyclic monophosphate
- adenosine deaminase
- adenosine deaminase deficiency
- adenosine diphosphate
- adenosine monophosphate
- adenosine triphosphatase
- adenosine triphosphate
- adenosis
- adenovirus
- adenylate cyclase
- adenylic acid
- Adeodatus II
- adephagia
- adept
- adeptness
- adequacy
- adequate
- adequately
- adessive
- ad eundem gradum
- à deux
- ad extremum
- ADF
- ADFA
- ad feminam
- ad fin.
- adfreeze
- ad gloriam
- ADH
- adhan
- ADHD
- adhere
- adherence
- adherend
- adherent
- adhering
- adhesion
- adhesive
- adhesive bandage
- adhesive binding
- adhesive plaster
- adhesive tape
- adhibit
- ad hoc
- ad hockery
- adhocracy
- ad hominem
- adiabat
- adiabatic
- adiabatic chart
- adiactinic
- adiadochokinesia
- adiaphoresis
- adiaphoretic
- adiaphorism
- adiaphorous
- adiathermancy
- Adichie
- Adie
- adient
- adieu
- Adige
- Adi Granth
- ad infinitum
- ad initium
- ad int.
- ad interim
- adios
- adip-
- adipate
- adipic acid
- adipo-
- adipocere
- adipocerite
- adipocyte
- adiponitrile
- adipopexia
- adipose
- adipose fin
- adipose tissue
- adiposity
- Adiprene
- adipsia
- adire
- Adirondack
- Adirondack chair
- Adirondack Mountains
- adit
- Aditya
- Adivasi
- adj.
- Adj.A.
- adjacency
- adjacent
- adjacent angle
- adjacent angles
- adjectival
- adjective
- adjective clause
- adjective phrase
- adjective pronoun
- adjectivize
- adjigo
- adjoin
- adjoining
- adjoint
- adjoint differential equation
- adjourn
- adjourned
- adjournment
- adjt.
- adjudge
- adjudicate
- adjudicated
- adjudication
- adjudicator
- adjugate
- adjunct
- adjunction
- adjunctive
- adjunct professor
- adjuration
- adjure
- adjust
- adjustability
- adjustable
- adjustable-pitch
- adjustable-rate mortgage
- adjusted
- adjusted gross income
- adjuster
- adjustive
- adjustment
- adjustment disorder
- adjustor
- adjutancy
- adjutant
- adjutant bird
- adjutant general
- adjutant stork
- adjuvant
- ad kalendas Graecas
- ADL
- Adlai
- adland
- Adler
- Adlerian
- ad lib
- ad-lib
- ad lib.
- ad libitum
- ad litem
- ad litteram
- ad loc.
- adm.
- Adm.
- Admah
- ad majorem Dei gloriam
- adman
- admass
- admeasure
- admeasurement
- Admete
- Admetus
- admin
- admin.
- adminicle
- administer
- administered price
- administerial
- administrable
- administrate
- administration
- administration order
- administrative
- administrative assistant
- administrative county
- administrative law
- administrative-law judge
- administrative leave
- administrative segregation
- administrator
- administratrix
- admirable
- admirable bolete
- Admirable Crichton, The
- admiral
- Admiral of the Fleet
- admiralty
- Admiralty Board
- admiralty cloth
- Admiralty House
- Admiralty Inlet
- Admiralty Islands
- admiralty metal
- Admiralty mile
- Admiralty Range
- admiration
- admire
- admirer
- admiring
- admissible
- admission
- admissive
- admit
- admittance
- admitted
- admittedly
