Wiktionary
n. (plural of backup English)
Wikipedia
Usage examples of "back-ups".
Other athletes may have organised similar back-ups but few observers doubted Freeman's advantage with her team.
In the end I'd taken to making daily back-ups myself on the terminal in my sitting-room, storing the disks in my safe.
I agreed with him entirely about back-ups, but I didn't think viruses a game.
He said earnestly, 'If you do have any back-ups, let me check them before you use them.
I mean, you only use back-ups if the computer itself goes haywire, don't you?
I typed a thank you message onto the list and made a back-up copy of the new work onto a clean unused floppy, though I suspected the office would be ankle-deep in back-ups from now on.
He destroyed all the back-ups he could get his ghosts to ferret out, you know.
Thorne swung a console chair into clamps close beside his, settled down, and rapidly entered some notes on logistics and angle of attack, point-men and back-ups, and traced projected routes through the buildings.