This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.
If a word conforms to a special rule, I call it a Touch Word™.
Use the following examples below to find the rule.
$$\begin{array}{|c|c|} \hline \textbf{Touch Words™}&\textbf{Not Touch Words™}\\ \hline \text{DECOMPOSE}&\text{DECAY}\\ \hline \text{ENEMY}&\text{LINE}\\ \hline \text{EXPEDIENCY}&\text{QUEUE}\\ \hline \text{ESCAPE}&\text{EIGHTY}\\ \hline \text{DEVIOUS}&\text{TEDIOUS}\\ \hline \text{IVY}&\text{EXCELLENCY}\\ \hline \text{FOURSCORE}&\text{UNKNOWN}\\ \hline \text{BORING}&\text{TRICKY}\\ \hline \text{EFFICIENCY}&\text{TEENAGER}\\ \hline \text{FUGITIVE}&\text{EXTRA}\\ \hline \end{array} $$
And, if you want to analyze, here is a CSV version:
Touch Words™,Not Touch Words™ DECOMPOSE,DECAY ENEMY,LINE EXPEDIENCY,QUEUE ESCAPE,EIGHTY DEVIOUS,TEDIOUS IVY,EXCELLENCY FOURSCORE,UNKNOWN BORING,TRICKY EFFICIENCY,TEENAGER FUGITIVE,EXTRA
But don't use it.
Thanks to Engineer Toast and GentlePurpleRain for posting all the words I needed here and there.