Definitions

1. adjective

genuine; real; true

“He thought the diamond was dinkum, but it turned out to be a fake.”

2. adverb

genuinely; really

“I’m dinkum hungry after that hike.”

3. noun

a genuine or true thing

“The dinkum story about the lost treasure was hard to believe.”

4. interjection

an expression of agreement or confirmation

“Dinkum, that’s a great idea!”