pen vs script

pen and script both are nouns.

Word	Noun	Adjective	Verb	Adverb
pen	Yes	No	Yes	No
script	Yes	No	Yes	No

As verbs, script is a hyponym of pen; that is, script is a word with a more specific, narrower meaning than pen:

pen (noun)	script (noun)
female swan	a written version of a play or other dramatic composition; used in preparing for a performance
a writing implement with a point from which ink flows	a particular orthography or writing system
an enclosure for confining livestock	something written by hand
a correctional institution for those convicted of major crimes
a portable enclosure in which babies may be left to play

pen (verb)	script (verb)
produce a literary work	write a script for