Definition of "arvo"

“Rope and tomahawk,” explained Col. “We put them here this arvo when I came down and whistled first time.”

1960, John Gunn, The Humpy in the Hills, page 46

The usual reaction of a footsoldier observing such incidents is well summed up by the comments of Private Derrick in the Salient at Tobruk: ‘Seen a human side of the war yesterday arvo Red Cross partys [sic] burying dead & treating wounded one of our partys were fired on by enemy & I will always remember it’.50

2000, Mark Johnston, Fighting the Enemy: Australian Soldiers and their Adversaries in World War II, page 33

‘We'll fly you out at seven this arvo—but bring them down a little early, just in case we need to think of something else.’

2010, Chris Bray, The 1000 Hour Day: Two Adventurers Take on the World's Harshest Island, unnumbered page

“Yeah, he only works on a Saturday arvo,” Kelly told her. “I think the place is packed on that day, because girls come from everywhere just to get a glimpse of him. He's hot as.”

2010, Rebecca Iannone, The Invisible String: The Secrets That Bind, page 55