The word "thornell" is spelled with a "th" sound at the beginning, followed by "orn" and ending with "ell." It is pronounced as /θɔːnɛl/. The "th" sound is actually made up of two letters, "t" and "h," and is pronounced by placing the tongue between the teeth and blowing air to produce a soft hissing sound. The "or" sound is pronounced as in the word "more," while the "ell" sound is pronounced as in the word "bell."