The spell checker employs a dictionary wherein each word of the dictionary has {HEAD ~ a signature} associated with the word to facilitate searching for {TAIL ~ substitute words} 
The spell checker employs a dictionary wherein each word of the dictionary has { HEAD ~ a signature } associated with the word to facilitate searching for { TAIL ~ substitute words }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL