/ ˈprɒmptli; NAmE ˈprɑːm-/ adverb
1.
without delay :
She deals with all the correspondence promptly and efficiently.
2.
exactly at the correct time or at the time mentioned
SYN punctually :
They arrived promptly at two o'clock.
3.
(always used before the verb) immediately :
She read the letter and promptly burst into tears.