Diss is an abbreviation of the word disrespect. Diss is used as slang, especially among hip hop and graffiti artists. If you diss someone, you have insulted them.
You dissolve a solid in a liquid by mixing the solid around until it seems to disappear. Once the solid is completely dissolved, the resulting solution behaves exactly like a liquid. Solids won't dissolve in any liquid, they must be soluble in them. For example, table salt is soluble in water but not in oil.
Solids that do not dissolve in a liquid but are mixed into a liquid can be removed with a filter. Filtering is an effective way to remove very fine particles of dirt from water.
Something is distant if it is a long way away from you. Something can be distant in terms of physical distance or time, for example "her childhood was a distant memory".
Video: view
Diving is a sport where you jump into the water, usually from a small platform. Some people dive in so they can start swimming faster. Sometimes people have the diving board set up really high so between jumping off and landing in the water they have time to do lots of acrobatic twists and turns.
Usually when you dive into the water, you want to make as small a splash as possible.
Doberman dogs, also called dobermann Pinschers, are a large, slim dog originally from Germany. They were used most often as guard dogs or police dogs, but are now most common as pets. They are an extremely loyal, protective, intelligent dog. They have developed a reputation for aggression, this has been selectively bred out in recent years but the reputation remains and is still popularised on TV and in movies.