As a Hindi name
होलिका · noun · feminine
होली का त्योहार · लकड़ी, घास फूस आदि का वह ढेर जो होली के दिन जलाया जाता है · एक राक्षसी का नाम जो हिरण्यकशिपु की बहिन थी । विशेष दे॰ 'ढुंढा'१ — Śabdasāgara
होलिका · holikā · s.f.
= holī, q.v — Platts (1884), digital edition courtesy DSAL, University of Chicago, p. 1242
As a Sanskrit word
Meaning
the Holī festival (also applied to a Rākṣasī worshipped at it)
Verified derivationWhy this matches what you typed
The spelling you confirmed, होलिका, is itself a dictionary headword — no grammatical transformation stands between what you typed and the meaning above.
Dictionary citations
holikā f. the Holī festival (also applied to a Rākṣasī worshipped at it), W.
holikā, holī The festival called holākā q. v. above.
Caveats
Sources contain errors and engines have limits; every claim above carries its citation so you can verify it. This is guidance about names and their sources — not religious or astrological consultation. How we work · Our sources