The correct spelling of the name "Phillbert" is with two L's, despite common misspellings with just one L. The IPA phonetic transcription of this name would be /ˈfɪlbərt/, with emphasis on the first syllable. The spelling of the name may be derived from the Germanic names "Philbert" or "Filbert," which mean "very brilliant" or "very bright." In any case, it's important to spell names correctly to ensure proper identification and communication in daily life.