Real Dictionary

landscape
countable noun: A landscape is all the features that are important in a particular situation.
variable noun: The landscape is everything you can see when you look across an area of land, including hills, rivers, buildings, trees, and plants.

landscape in American English
a picture representing a section of natural, inland scenery, as of prairie, woodland, mountains, etc.
to change the natural features of (a plot of ground) so as to make it more attractive, as by adding lawns, trees, bushes, etc.
to work as a landscape architect or gardener
intransitive verb: to do landscape gardening as a profession
noun: a section or expanse of rural scenery, usually extensive, that can be seen from a single viewpoint
transitive verb: to improve the appearance of (an area of land, a highway, etc.), as by planting trees, shrubs, or grass, or altering the contours of the ground

landscape in British English
adjective: (of a publication or an illustration in a publication) of greater width than height
noun: an extensive area of land regarded as being visually distinct
verb: to improve the natural features of (a garden, park, etc), as by creating contoured features and planting trees