extratool
nounUK /ˈɛkstrətuːl/
US /ˈɛkstrətuːl/
An extra tool is a special helper you use when you need one more thing to get a job done.
Dad kept an extratool in the car in case the bike broke on the way.
OTHER MEANINGS
2. A bonus feature in a computer program that does an extra job.
The drawing app has an extratool for adding stars to pictures.
3. A person who helps out with extra jobs.
Mia was the extratool on the team, always ready to help.
4. Something added on to make a task easier.
A step stool is an extratool for reaching high shelves.