[A][B][C][D][E][F][G][H][I][J][K][L][M][N][O][P][Q][R][S][T][U,V][W][X,Y,Z]
Nail your colours to the mast
Namby-pamby
Name and shame
Name is mud
Nasty, brutish and short
Nation of shopkeepers - A
Nautical phrases
Ne'er cast a clout till May be out
Needs must
Neither a borrower nor a lender be
Neither fish nor flesh, nor good red herring
Neither here nor there
Nest-egg
Never give a sucker an even break
Never knowingly undersold
Never-never land
Never the twain shall meet
New kid on the block
Nice as ninepence
Nice kettle of fish
Nine days' wonder
Nip and tuck 
Nip in the bud
Nitty-gritty
No-brainer
No dice
No holds barred
No man is an island
No more cakes and ale?
No names: no pack-drill
No rest for the wicked
No room to swing a cat
No way, Jose
Not for all the tea in China
Not playing with a full deck
Not tonight Josephine
Not worth a plugged nickel
Not worth the candle
Nothing is certain but death and taxes
Nothing succeeds like success
Now is the winter of our discontent
Nth degree
Nul points