Declension table of dūna

Masculine	Singular	Dual	Plural
Nominative	dūnaḥ	dūnau	dūnāḥ
Vocative	dūna	dūnau	dūnāḥ
Accusative	dūnam	dūnau	dūnān
Instrumental	dūnena	dūnābhyām	dūnaiḥ dūnebhiḥ
Dative	dūnāya	dūnābhyām	dūnebhyaḥ
Ablative	dūnāt	dūnābhyām	dūnebhyaḥ
Genitive	dūnasya	dūnayoḥ	dūnānām
Locative	dūne	dūnayoḥ	dūneṣu

Compound dūna -

Adverb -dūnam -dūnāt