an informal term used to express no or disagreement

नहीं

English Usage: "Do you want to go to the party?" "Nah, I'm tired."

Hindi Usage: "क्या तुम पार्टी में जाना चाहते हो?" "नहीं, मैं थका हुआ हूँ।"

used to indicate a casual dismissal of something

छोड़ दो

English Usage: "I don't really want to deal with that right now, so let's just na it."

Hindi Usage: "मैं वाकई में अभी उस चीज़ से निपटना नहीं चाहता, इसलिए चलो इसे छोड़ दो।"