to engage in a specific activity, often related to trade or negotiation

निपटाना

English Usage: He is dealing with several issues at work right now.

Hindi Usage: वह इस समय काम पर कई मुद्दों से निपट रहा है।

the act of participating in a transaction or arrangement

लेन-देन

English Usage: The dealing between the two companies was concluded successfully.

Hindi Usage: दो कंपनियों के बीच का लेन-देन सफलतापूर्वक समाप्त हुआ।