fastchange
nounUK /ˈfɑːsttʃeɪndʒ/
US /ˈfæsttʃeɪndʒ/
A fastchange is when something changes very quickly.
The weather had a fastchange from sunny to rainy in just ten minutes.
OTHER MEANINGS
2. A quick swap of one thing for another.
The team made a fastchange of players at halftime.
3. A person who changes their mind very often and quickly.
My little brother is a fastchange and picks a new favorite color every day.
4. A machine part that lets you change gears quickly.
The bike's fastchange made it easy to pedal up the hill.