Western Australia

Walmart.com

trademark, so capitalise

no need to include 'http://www' unless you want it to be an active link.

thin end of the wedge, not edge

trademark, so capitalise

he's well known for his wit, better known for his temper but best known for his flower arranging. We sometimes write 'most well known', which is wrong.

one word, no hyphen

but West Bank, West End

not West Australia for the name of the state. But it's the West Australian Ballet and The West Australian (newspaper)

wheelchair user, not 'wheelchair bound', nor 'confined to a wheelchair'

one word, and one L

while is preferred in everyday writing

never Whitehouse when you mean the one in Washington, DC

but he's a wiz at math

the contraction of 'who is'

belonging to (the boy who's annoying me is the same boy whose sister I like)

'...a book which opens a window on one of the greatest periods of English history' (Shorter Oxford Dictionary)

a wiz at Scrabble ... but whiz-kid ... gee whiz

less is more in phrases like 'we look at the way in which we engage with...', which can be rewritten as 'we look at the way we engage with...' or even 'we look at how we engage with...'

'There is an increasing number of overseas players buying into Australian agriculture.' This is too wordy and might be better like this: More and more overseas players are buying in to Australian agriculture.

Remember the scale of badness: bad, worse (comparative), worst (superlative). The headline 'Pakistan's children worse hit by floods' is wrong. Here we need the superlative: Pakistan's children worst hit by floods.

Worse is the comparative form of 'bad', as in 'Yesterday's weather was bad, but today's is worse.' Worst is the superlative form of 'bad', as in 'That was the worst day of my life.'

We sometimes use 'wrack' when we mean 'rack'. Wrack is seaweed (but you can be racked with pain, go to rack and ruin, rack your brains, or find something nerve-racking)

but rap someone over the knuckles

but reek of corruption

Never a writer's festival, because that would be a festival for only one writer. Sydney still (as at 2010) has an apostrophe: Sydney Writers' Festival; Perth and Brisbane have dropped it: Perth Writers Festival, Brisbane Writers Festival; and Adelaide has the Adelaide Festival Writers' Week. If in doubt, check each festival's official website.