A
A for effort
AA
Abide by (something)
Abide by a decision
Able to (do something) standing on one's head
Able to (do something) with one's eyes closed/shut
Able to breathe easily again
Able to breathe easily/freely again
Able to do (something) blindfolded
Able to take a joke
About time
About to (do something)
Above and beyond
Above average
Above board
Above par
Above reproach
Above suspicion
Absent-minded
According to Hoyle
Ace in the hole
Achilles' heel (of someone or something)
Aching heart
Acid test
Acquire a taste for (something)
Across the board
Act high and mighty
Act of God
Act one's age
Act up
AD
Add fuel to the fire
Add insult to injury
Add up
Add up (to something)
Adjourn a meeting
Advise against (something)
Afraid of one's own shadow
After a fashion
After all
After all is said and done
After hours
After one's own heart
After the fact
Against one's will
Against the clock
AGM
Ahead of one's time
Ahead of the game
Ahead of the pack
Ahead of time
AI
AIDS
Air (something) out
Air one's dirty laundry/linen in public
Air one's dirty linen in public
Air one's grievances
Albatross (around someone's neck)
Alive and well/kicking
All along
All at once
All day long
All ears
All eyes
All eyes are on (someone or something)
All for (someone or something)
All hands on deck
All in
All in (someone's) mind
All in a day's work
All in all
All in one breath
All in one piece
All manner of (someone or something)
All night long
All of a sudden
All over but the shouting
All over the place
All right
All rolled up in one
All set
All sweetness and light
All systems go
All talk (and no action)
All the rage
All the time
All thumbs
All to the good
All told
All-in-one
All-out-effort
Alley cat
Allow for (someone or something)
Almighty dollar
Along with (someone or something)
AM
Amount to (something)
Amount to the same thing
Answer to (someone)
Ante up
Any number of (someone or something)
AOB
AOK
APB
Appear out of nowhere
Apple of (one's) eye
Apple of (someone's) eye
Argue for the sake of arguing/argument
Arm and a leg
Arm in arm
Armed and dangerous
Armed to the teeth
Armpit of (somewhere)
Around the clock
Arrive on the scene
Arrow in one's quiver
As a duck takes to water
As a last resort
As a matter of fact
As a result of (something)
As a rule
As awkward as a cow on roller skates
As bald as a baby's backside
As bald as a coot
As black as a skillet
As black as a stack of black cats
As black as a sweep
As black as coal
As black as night
As black as pitch
As black as the ace of spades
As blind as a bat
As broad as a barn door
As busy as a beaver
As busy as a bee
As busy as a one-armed paperhanger
As busy as popcorn on a skillet
As calm as a toad in the sun
As clean as a hound's tooth
As conceited as a barber's cat
As cool as a cucumber
As crazy as a bedbug
As crazy as a loon
As crooked as a dog's hind leg
As dead as a dodo
As drunk as a skunk
As dry as a bone
As easy as ABC
As easy as apple pie
As easy as duck soup
As far as
As far as possible
As fat as a pig
As flat as a pancake
As free as a bird
As full/tight as a tick
As gaudy as a butterfly
As gentle as a lamb
As good as one's word
As graceful as a swan
As gruff as a bear
As happy as a clam
As happy as a lark
As hard as nails
As hoarse as a crow
As hungry as a bear
As innocent as a lamb
As long as
As luck would have it
As mad as a hornet
As mad as a wet hen
As meek as a lamb
As merry as a cricket
As naked as a jaybird
As nervous as a cat
As nutty as a fruitcake
As old as the hills
As one
As phony as a three-dollar bill
As plain as the nose on one's face
As poor as a church mouse
As proud as a peacock
As quiet as a mouse
As red as a cherry
As red as a lobster
As red as a poppy
As red as a rose
As red as a ruby
As red as blood
As scarce as hen's teeth
As scarce as hen's teeth/scarcer than hen's teeth
As scared as a rabbit
As sick as a dog
As silly as a goose
As slippery as an eel
As sly as a fox
As snug as a bug in a rug
As sober as a judge
As soft as a baby's bottom
As soft as down
As sound as a dollar
As sour as vinegar
As strong as a horse/lion/ox
As stubborn as a mule
As such
As sweet as honey/sugar
As the crow flies
As thick as pea soup
As ugly as a toad
As usual
As warm as toast
As weak as a kitten
As well as
As white as a ghost
As white as a sheet
As white as the driven snow
As wild as a tiger
As wise as an owl
As yet
ASAP
Ask (someone) out
Ask for someone's hand in marriage
Ask for the moon
Ask for trouble
Asleep at the switch
Assault and battery
Assault the ears
Assemble a case (against someone)
Assume liability
At (someone's) beck and call
At (someone's) earliest convenience
At (someone's) service
At a loss
At a loss (for words)
At a premium
At a sitting
At a stretch
At all costs
At any rate
At arm's length
At bay
At best
At cross-purposes
At death's door
At each other's throats
At ease
At every turn
At face value
At fault
At first
At first blush
At hand
At heart
At home
At it again
At large
At last
At least
At length
At loggerheads with (someone)
At loose ends
At odds (with someone)
At once
At one sitting
At one time
At one with (someone)
At one's fingertips
At one's heels
At one's wit's end
At peace
At random
At risk
At sea
At sea (about something)
At sixes and sevens
At stake
At the appointed time/hour
At the bottom of the hour
At the bottom of the ladder
