I like to do a bit of gardening in my spare time.
I like to play baseball and read in my spare time. (Key English Test; A2; Chinese)
a spare key/tyre
Have you got a spare pen?
We've got a spare room if you want to stay overnight with us.
Could I have a word with you when you've got a spare moment/minute?
"Do you want this cake?" "Yes, if it's going spare."
You know I'm not good at writing letter[s], [but] do write [to] me if you have a spare minute. (Preliminary English Test; B1; Farsi)
I have to go soon, but I can spare a few minutes.
Can you spare me some change?
Thank you for sparing your time to read my letter and I look forward to the next edition of your newspaper. (Certificate in Advanced English; C1; Korean)
I arrived at the station with more than an hour to spare.
I even started to do the shopping on the Net, and I think this is the perfect solution for the busines[s] woman with family and little time to spare. (Certificate in Advanced English; C1; Italian)
We will spare no effort to find out who did this.
"However, there is a remote chance that you can be cured and we will spare no pains in order to help you," he was told. (Certificate of Proficiency in English; C2; German)
Spare a thought for all the people who have lost their homes.
At this point, we should spare a thought for those who are not involved in the sport world. (Certificate of Proficiency in English; C2; Spanish)