DICTIONARY
Sirens - To hear sirens in your dream signify a situation or problem that is giving you much stress. The sirens may serve to get your attention and focus on the problem at hand. To see sirens in your dream, but not hear them refers to your ability to block out certain aspects of a problem. You are only seeing part of the issue. Alternatively, seeing sirens is a warning.
Sister - To see your sister in your dream symbolizes some aspect of your relationship with her, whether it one of sibling rivalry, nurturance, protectiveness, etc. Your sister may draw attention to your family role. Or the dream may also serve to remind you that someone in your waking life has characteristics similar to your sister. Alternatively, your sister may be a metaphor for a nun. In this case, she may represent some spiritual issues. If you do not have a sister and dream that you have one, then it signifies feminine qualities that you need to activate or acknowledge within your own self. Pay attention to the actions and behavior of your dream sister.
Sister-In-Law - To see your sister-in-law in your dream represents characteristics in her that you find within your own self. Consider also your waking relationship with her. If you dream that you are arguing with your sister-in-law, then it suggests that you are refusing to acknowledge or accept certain qualities of your sister-in-law.
Sit Ups - To do sit ups in your dream suggests that you need to pay better attention to something in your life, like a relationship, school, work, family, or project. Alternatively, doing sit ups could indicate that you need to show more pride and confidence in your ability.
Sit-Com - *Please See Comedy.
Sitar - To see or hear a sitar in your dream signifies passion, joy and healing. The sitar is also symbolic of the Indian culture.
Sitting - To dream that you are sitting indicates your indecision. You do not know what you want to do about something. It also suggests that you are idling and wasting your life away.
Size - To dream about the size of something represents the importance or lack of importance that you attach to certain objects or persons. The larger something is, the more important it is. Conversely, the smaller something is, the more trivial it is. Size also relates the degree of power you are exerting and the power others have on you. Perhaps the dream indicates that you are "sizing" someone up. According to Freudian school of thought, the size of an object, signifies the size of someone's penis, perhaps your own or your lover.
Skateboard - To see or ride a skateboard in your dream indicates that you have the gift of making any difficult situation look easy. You carry yourself with style, grace and composure in the hardest of situations. Alternatively, the dream signifies your free and fun-loving side.
Skatepark - To dream that you are at a skatepark means that you are not afraid of confronting obstacles that may stand in your way. You confront these obstacles head on without hesitation.