What does spark mean?

See a translation

faísca.

literally, it means a small fiery particle like from a lighter that isn't working or the small jumping pieces of light from electricity -- but sometimes it's used to mean a feeling, like if someone is not attracted to someone they can say "there was no spark between us". It can be used as an amount like "the boy had a spark of intelligence in his eyes". It can also be used as a verb meaning to start something-- you can use it literally like, "the girl used two stones to spark a fire" or figuratively like, "the argument sparked a war between the two families".