In a certain code, bi nie pie means some good jokes, nie bat lik means some real stories, and pie lik tol means many good stories. Which word means jokes?

The word for jokes is bi.

'some' is shared by clue 1 and clue 2, so nie = some.

'good' is shared by clue 1 and clue 3, so pie = good.

Clue 1 'bi nie pie' means some good jokes.

With nie and pie known, bi must mean jokes.