shortening
US /ˈʃɔːrt.nɪŋ/
UK /ˈʃɔːrt.nɪŋ/

1.
2.
the action or process of making something shorter
:
•
The shortening of the school day was met with mixed reactions.
•
The shortening of the skirt made it more fashionable.
the action or process of making something shorter