Fill In Photography is when you take a Photograph of an Object or Person in direct Sunlight, due to the Sun being behind the object/person it would cause a Silhouette photograph. so to remove the Silhouette effect you need to use a Flash to "Fill In" the shaded area.
A building.
The modern definition of photography is the process of producing images. This also includes, the process of taking or producing a photo.
emphasizes the point of an object
Photography is the process of taking pictures with a camera - it's the definition of the word. Without a camera of some sort, it's not photography.
a2+b2=c2
It is the juxtaposition of several elements in the photograph
A photograph taken very close to the subject.
The definition of Astrophotography is to photograph stars and objects in outer space. It is basically to use photography in the field of astronomy, which is in space.
In photography, a form of camera, which can be drawn out like an accordion or bellows.
Any digital camera is a good start, HD doesn't really pertain to still photography anymore. Only video
To fill your lungs by sucking in air.
The answer depends on the context of the question. Photography is a craft; it can be an art; collections of photographs can be considered resources when they serve to fill a potential need; a photography department might be considered a resource, etc. Probably to get a good answer, you'll need to refine the context of your question.