I'm a software developer and I try to take naming variables, functions, classes etc. rather seriously. I'm looking for a single-word noun that describes the verbal display or representation of data. It will ultimately be written as a TimeSpanTo[Blank]Converter
For example, if I input "23" and output "twenty-three", I've converted from an integer to a(n) [Blank]
More specifically I'll be using this with time data, so a times stamp of "02:30:00" would display as "2 and a half hours"
If what I'm looking for doesn't exist, would lexicon or literal be appropriate? Any other suggestions?