To dream of a spider denotes that you are being ignored and overlooked by others. Perhaps you feel that it is best to avoid someone or something that will only influence you negatively. The spider also represents female strengths and intensity. It may be implying that there is some entity trying to keep you safe from your own actions. If you kill a spider, it indicates that you will soon face hardships and obstacles.
To see a spider spinning a web implies that your energies and exertions will result in great gifts. This can be in the form of career advancement, elevation in social status, or prosperity. Spiders represent imagination and artistic nature.
On a negative note, spiders may suggest that you feel stuck in a negative relationship. Perhaps your significant other is being too dependent on you. It can indicate that you are being influenced by someone or something that is detrimental to your happiness or safety.
To see a spider climbing up a wall in your dream implies that you will achieve your goals in the near future.
To dream that you are bitten by a spider symbolizes an issue between you and a female associate. You may be feeling entangled in a relationship that you no longer want to be a part of.
To dream of a tarantula is an indication that you have a darker side to your personality.
To dream about a black widow spider symbolizes anxiety over an affair. It's possible that you feel bound up and cramped, and there might be some angry feelings. The female of this spider species is known to eat the male, so it can also be a symbol of female dominion.
To dream of cobwebs implies that you are wasting your natural gifts. You haven't taken the time to develop these skills and qualities.