What does Upwork mean by skills?

Related questions

1. What is Upwork plus client?
2. What is promo code in Upwork?
3. What is Upwork account?
4. How much do Upwork connects cost?
5. What are Upwork connects?

Tags

1. #freelancers
2. #provide
3. #effort
4. #offer
5. #freelance
6. #demand
7. #survey
8. #happen
9. #relevant
10. #upwork
11. #current
12. #continuously
13. #making
14. #skills
15. #conducts
16. #clients
17. #annual
18. #definitely
19. #market