A moment in time or a very short period.

Something that occurs immediately or without delay.

तत्क्षण

English Usage: The instant success of the product surprised everyone.

Hindi Usage: उत्पाद की तत्क्षण सफलता ने सभी को आश्चर्यचकित कर दिया।

Happening immediately.

Ready to use or requiring little preparation (often used in context with food or drink).

त्वरित

English Usage: She prefers instant coffee over brewed coffee.

Hindi Usage: वह पीसी हुई कॉफी की तुलना में त्वरित कॉफी को पसंद करती है।

To bring about immediately, though this usage is less common.

तुरंत लाना

English Usage: He tried to instant his application for a refund.

Hindi Usage: उसने धनवापसी के लिए अपने आवेदन को तुरंत लाने की कोशिश की।