At the same time as; during the time that.

उसी समय

English Usage: "Whileas I appreciate your help, I must decline the offer."

Hindi Usage: "हालांकि मैं आपकी मदद की सराहना करता हूँ, मैं इस प्रस्ताव को अस्वीकार करना चाहता हूँ।"

A period of time or an interval during which something occurs.

एक समय अवधि

English Usage: "She read a book whileas it was raining."

Hindi Usage: "उसने एक किताब पढ़ी जबकि बारिश हो रही थी।"