its a plural word I think that's why you did not get the meaning it has 2 meaning
1
a device with a small spike or a spiked wheel that is worn on a rider's heel and used for urging a horse forward.
"Jacobs said he used the spurs to control the horse and that any force he used was to control the horse and keep himself out of danger."
2
a thing that prompts or encourages someone; an incentive.
"profit was both the spur and the reward of enterprise"
synonyms: stimulus, incentive, encouragement, inducement, impetus, prod, motivation, inspiration, catalyst, springboard, kick up the backside, shot in the arm
now you need to check in which context this word is use.
I hope I answer to your question.