Above all – chiefly, before everything else
Above-board – not open to question, honest, straight forward, beyond reproach.
Above-par – of superior quality
A fidus Achates – faithful friend
The heel of Achilles – a weak spot
An Adonis – a very handsome man
To build castles in the air – to think of something impossible of realization; to day-dream; to conceive fanciful ideas
To assume airs – to affect superiority.
To stand aloof – to keep to oneself and no mix with others
To lead to the altar – to marry
An Amazon – a warlike woman; a masculine woman.
To weigh anchor – to be about to sail
To cast anchor – to drop anchor into the sea
An Apollo – a man with a perfect physique
The apple of discord – a cause of strife, contention, or quarrel
To upset the apple cart – to disturb the peace
Apple pie order – in perfect order
To be tied to his mother’s apron strings – to be under the control and influence of his mother.
Arcadian life – a blissfully happy, rural and simple life
To keep a person at arm’s length – to avoid coming in contact with a person
To take up arms – to fight; to go to war
To receive with open arms – to welcome cordially
To cleanse the Augean stable – to effect great improvements in government
To have an axe to grind – to have some selfish objective in view
A Babel – a confused noise.
To break the back of anything – to perform the most difficult part of it
To backbite a person – to slander or to speak ill of someone
He is the backbone of his team
He has no backbone – he has no will of his own.
Backstairs influence – influence exerted in an underhand.
To cause bad blood – to cause strife and enmity
A bad egg; a bad penny – a worthless person
Bad form – bad manners.
Bag and baggage – with all one’s belongings
To keep the ball rolling – to keep things going
To bandy words – to wrangle of exchange arguments
Baptism of fire – a soldier’s first experience of actual war
To call to the bar – to admit as a barrister
To beat about the bush – to approach a matter in an indirect and roundabout manner
To be dead beat – worn out by fatigue
To have a bee in one’s bonnet – to hold fantastic notions on some points; to be cranky.
Bee-line – the shortest distance between two places.
Behind one’s back – without one’s knowledge
Behind the scenes – in private; out of sight
To make believe – to feign or pretend
To bell the cat – to do something which is extremely dangerous
To hit below the bell – to act unfairly in a contest
To give a person a wide berth – to keep as far away from him as possible
His better half – a man’s wife
A bird in the hand is worth two in the bush – Certainty is better than possibility
To bite the dust – to be defeated in battle – to die
The bitter bit – to cheat the cheater
Black and white – Write it down
A wet blanket – a person who discourages others