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ḍāḥikatun
Laughing
N – nominative feminine indefinite active participle
Root Link: ض ح ك
mus'tabshiratun
rejoicing at good news
N – nominative masculine indefinite (form X) active participle
Root Link: ب ش ر

Acknowledgements:

Single-Word Audio has been made possible through software provided by Arabic NLP

James Ada's concordance work; his research can be found at www.organizedQuran.com
Note: James is now a member of the IslamAwakened Continuity Board