Taghaful – neglect/ignorance

This word is expressed beautifully in Mirza Ghalib’s couplet given below.

Hamne maana ke taghaful na karoge lekin

khaak ho jayenge hum, tum ko khabar hone tak

khaak – destroyed

We have attached a link of the complete ghazal in which this couplet appears- sung by Jagjit Singh.