trusty
adjectiveUK /ˈtrʌsti/
US /ˈtrʌsti/
A trusty thing is one you can always count on to work well.
My trusty old bike gets me to school every day.
RELATED WORDS
OTHER MEANINGS
2. A trusty is a prisoner who is given special privileges for good behavior.
The trusty helped carry the food trays to the other cells.
3. Something that has been used for a long time and still works well.
He pulled out his trusty pocket knife to open the box.
4. Able to be trusted to keep a secret or do what is right.
She is a trusty friend who never tells anyone your secrets.