Black Widow 
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.
Black Magic
Experiencing black magic in a dream indicates a dangerous path you may be going down or a dangerous opportunity that has presented itself to you in waking life. Whatever form this danger may take, your subconscious mind is exploring the possibilities and consequences using black magic in your dream.
Blackberries
A dream in which you see or eat blackberries means that you are acting without caution. It is also symbolic of repressed carnal urges.
Black and White
To see a dream in black and white indicates your need for more decisive and clear action. Your subconscious is instructing you to conduct your waking life with more purpose and clarity and eliminate excessive gray areas.
Alternatively, noticing that you are dreaming in black and white and that your dream is rather dull, it may be your subconscious suggesting you to add more excitement or 'color' to your waking life.
Gnat
To see a gnat in your dream represents those tiny things in life that are annoying and usually beyond your control. A tiny irritant that is difficult to ignore but is sometimes best left ignored when compared to the irritation it bestows.
Raven
To dream of a raven foretells conflict, adversity, betrayal, and/or an unfortunate death.
Stain
To dream of a stain implies that you have made a minor and easily-fixed error. Pay attention to the color, location, and composition. This may have further meanings.
Weeds
To dream of yourself weeding in a garden is symbolic of the 'weeds' in your life. Consider what is cluttering your life and preventing you from growing. Is there negativity or grudges you could release? Let go of all that is holding you back. Weeds themselves are a physical representation of neglect. Have you neglected yourself? Refused to allow yourself to grow? Perhaps you have lost a friend due to neglect.
Anvil
To see an anvil in your dream indicates that you alone will be able to attain your goals without assistance. However, to reach those objectives, you will experience great hardship and must overcome several hurdles.
To see a broken anvil in your dream implies that you have made a wrong decision that can never be reversed.
Cards
To dream that you are playing a game of cards suggests that you are an expert at using strategy, tactics, and bluffing in your daily routine. Diamonds on cards represent prosperity, clubs represent your job, hearts represent contentment, and spades represent difficult situations that may arise in the near future.
Dirty
To dream of dirtiness may indicate that you have anxiety or negative feelings surrounding sex. The dream occurs when the dreamer suffers from a negative self-image, which can be resolved by decontaminating the body, mind, and spirit.
Spades
To dream of the ace of spades represents impulsiveness, playfulness, and callousness. It may also be symbolic of control and rivalry. You feel that you must always dominate every situation.
Coyote
To dream of a coyote indicates that something in your life is dishonest, vulnerable, or exposed. This may represent a person, situation, or issue. Perhaps someone is trying to take advantage of you or con you out of something valuable.
Insult
A dream in which you are insulted may be a warning of an upcoming social clash. On the other hand, it may simply indicate that more people in your life have begun paying you attention.