The spelling of the word "Billingsly" can be explained using IPA phonetic transcription. The word is pronounced as /ˈbɪlɪŋzli/, with emphasis on the first syllable. The "B" is pronounced as /b/, while the "I" is pronounced as /ɪ/. The letters "L" and "G" are pronounced as /l/ and /ɡ/ respectively, and the word ends with a combination of "S" and "LY," pronounced as /zli/. With this pronunciation guide, one can easily spell the word correctly as Billingsly.
There is no dictionary definition of the term "Billingsly."