Probably - find out the gauge of wire (or cross-section area), you can then look-up the
current carrying ability. If its copper wire with insulation then its wire!
For breadboarding ordinary stranded wire isn't great, you want solid-core wire which is
stiff enough to poke into the breadboard without squashing up into a mess. A good
choice of colours is always useful to avoid confusion.
[ A lot of high-end Hi-fi equipment firms try to convince people that the speaker wire
has to be special, but with double-blind tests no-one can tell the difference between
hugely expensive oxygen-free monster sized wiring and a bit of flex from an old lamp ]