apocalyptic vision

apocryphal lodger [apocryphal = questionable authenticity]

apologetic explanation

apostrophic dignity

appalling difficulties

apparent significance

appealing picture

appointed function

apposite illustration

appreciable relief

appreciative fervor

apprehensive dread

apprentice touch

appropriate designation

approving smile

approximately correct

aptly suggested

arbitrarily imposed

arch conspirator

arched embrasure
              [embrasure = flared opening for a gun in a wall or parapet]

archeological pursuits

architectural grandeur

ardent protest

arduous quest

arid formula

aristocratic lineage

aromatic fragrance

arrant trifling

arrested development

arrogant imposition

artful adaptation

artificial suavity

artistic elegance

artless candor

ascending supremacy

ascetic devotion

ascribed productiveness

aspiring genius

assembled arguments

asserted activity

assiduously cultivated

assimilative power

assumed humiliation

assuredly enshrined

astonishing facility

astounding mistakes

astute observer

athletic prowess

atmospheric vagueness

atoning sacrifice

atrocious expression

atrophied view

attending circumstances

attentive deference

attenuated sound

attested loyalty

attractive exordium [exordium = introduction of a speech or treatise]

audacious mendicant [mendicant = depending on alms; beggar]

audible intimations

augmented force

august tribunal

auspicious moment

austere charm

authentic indications

authoritative critic

autobiographical pages

autocratic power

automatic termination

autumnal skies

auxiliary aids

available data

avaricious eyes

avenging fate

average excellence

averted calamity

avowed intention

awakened curiosity

awed devotion

awful dejection

awkward dilemma

axiomatic truth

azure sky

B

babbling gossip

bacchanalian desires

bachelor freedom

bad omen

baffled sagacity [sagacity = farsighted; wise]

balanced capacity

baldly described