short ‧ en /ˈʃɔːtn $ ˈʃɔːrtn/ BrE AmE verb [intransitive and transitive]
[ Word Family: noun : ↑ short , ↑ shortage , ↑ shortness , shorts, ↑ shorty ; verb : ↑ shorten , ↑ short ; adverb : ↑ short , ↑ shortly ; adjective : ↑ short ]
to become shorter or make something shorter OPP lengthen :
The days are shortening.
shorten to
His name is often shortened to Pat.