Salve 
To dream that salve is applied on you indicates that you will be successful in defeating upcoming obstacles and hurdles.
To dream that you are applying salve on someone else demonstrates your ability to be a devoted, trustworthy, and loyal friend.
Scarf
To dream of a scarf indicates that you are suppressing your feelings and emotions. You may feel as if you are being prevented of speaking your mind.
To dream that you are wearing a scarf symbolizes that either you are following your heart rather than using logic, or you are depending too heavily on reason instead of being guided by your emotions.
Screw
To dream of a screw implies that you feel insecure with your performance or used by somebody for his/her benefit. It may also signify that you are forgetting about some important and necessary aspect. Then again, it may represent the act of sex.
Sewer
To dream of a sewer represents a state of decay in former friendships or associations. It indicates the necessity for purification or urgent alterations.
Shark
To dream of a shark symbolizes a ruthless and corrupt individual who is only concerned about himself and disregards the needs of others. The shark may also represent these same aspects of your own character. Perhaps you are experiencing a stage in your life of great distress and anguish. The shark represents harsh emotions such as rage, aggression, and violence. These feelings may harm the mental well-being of yourself and those around you.
Sheep
To dream of sheep suggests that you are afraid to embark on innovative endeavors and experience new adventures. You are perfectly comfortable remaining stationary and following the opinions or directions of others.
Shirt
To dream of a shirt represents your present feelings. The shirt you wear reflects how you perceive and comprehend a certain situation.
To dream that you are giving a shirt to someone symbolizes your willingness to put the needs of others before yours. You are charitable and selfless.
Shore
To dream of the shore symbolizes that you have been able to reconcile an internal conflict and you are now at peace with your feelings. It also represents where your emotions and reason intersect.
Skull
To dream of a skull indicates that you may be facing a perilous situation, an immoral issue, or unfortunate demise of someone you know. It can also symbolize emotional mysteries. Perhaps you are concealing something from others.