मान्य करना angolul

backdate [backdated, backdating, backdates]▼verb
[UK: ˌbæk.ˈdeɪt] [US: ˈbæk.ˌdet]

invalidate [invalidated, invalidating, invalidates]▼verb
[UK: ɪn.ˈvæ.lɪ.deɪt] [US: ˌɪn.ˈvæ.lə.ˌdet]