As an adverb regen
is long time ago, long ago.
As an abbreviation regex is
(computing) (regular expression).
regen
English
Verb
(informal) regenerate
Anagrams
*
*
*
----
regex
English
(Regular expression)
Alternative forms
* (l)
* (l)
* (l)
Abbreviation
(es)
(computing) (regular expression)