Declension table of ?adhivacana

Neuter	Singular	Dual	Plural
Nominative	adhivacanam	adhivacane	adhivacanāni
Vocative	adhivacana	adhivacane	adhivacanāni
Accusative	adhivacanam	adhivacane	adhivacanāni
Instrumental	adhivacanena	adhivacanābhyām	adhivacanaiḥ
Dative	adhivacanāya	adhivacanābhyām	adhivacanebhyaḥ
Ablative	adhivacanāt	adhivacanābhyām	adhivacanebhyaḥ
Genitive	adhivacanasya	adhivacanayoḥ	adhivacanānām
Locative	adhivacane	adhivacanayoḥ	adhivacaneṣu

Compound adhivacana -

Adverb -adhivacanam -adhivacanāt