Punya in Jain Dharma means meritorious karma — karma that gives pleasant, favorable, or सुखद results in the future.

In simple words:

• Punya is formed by good deeds, compassion, charity, truthfulness, service, and restraint.
• It brings happiness, health, prosperity, and favorable circumstances.
• But in Jainism, both punya and paap are bondage of karma.

So even punya is ultimately something to be transcended on the path to moksha.

Short meaning: Punya = auspicious merit / good karma.

If you want, I can also explain the difference between punya, paap, and punya-bandh in Jainism.