As a deity name
Name 51 of the Hanuman Sahasranāma — Rasvin Samhita / Brahmanda Purana, as taught by Lord Ram / Sages
Name 948 of the Shiva Sahasranāma — Mahabharata (Anushasana Parva), as taught by Sage Tandi to Sage Upamanyu
Name 47 of the Surya Sahasranāma — Bhavishya Purana, as taught by Lord Brahma / Sages
As a Hindi name
No reading on this path — this spelling has no entry in our Hindi sources, and no near neighbour is attested there either. We say so rather than invent one.
As a Sanskrit word
Meaning
pl. (viśve, with or scil. devās cf. viśve-deva, p. 995) ‘all the gods collectively’ or the ‘All-gods’ (a partic. class of gods, forming one of the 9 Gaṇas enumerated under gaṇadeva…
Scripturally attestedWhy this matches what you typed
M1 · same meaning "viśvasmai" is the dative of "viśva" — the same word in a different grammatical case.
Dictionary citations
viśva mf(ā)n. (prob. fr. √ 1. viś, to pervade, cf. Uṇ. i, 151; declined as a pron. like sarva, by which it is superseded in the Brāhmaṇas and later language) all, every, every one
whole, entire, universal, RV. &c. &c.
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