An avatar is a computer user's representation of himself or herself, whether in the form of a three-dimensional model used in computer games, a two-dimensional icon (picture) used on Internet forums and other communities, or a text construct found on early systems such as MUDs. It is an “object” representing the embodiment of the user. The term "avatar" can also refer to the personality connected with the screen name, or handle, of an Internet user.

The terms wallpaper and desktop picture refer to an image used as a background on a computer screen, usually for the desktop of a graphical user interface. 'Wallpaper' is the term used in Microsoft Windows, while the Mac OS calls it a 'desktop background' (prior to Mac OS X, the term desktop pattern was used to refer to a small pattern that was repeated to fill the screen). Images used as computer wallpaper are usually raster graphics with the same size as the display resolution (for example 1024×768 pixels, or 1280×1024 pixels) in order to fill the whole background. Many screen resolutions are proportional in a 4:3 ratio, so an image scaled to fit in a different-sized screen will still be the correct shape, although that scaling may impact quality. Common wallpaper resolutions are 800x600, 1024x768, 1280x1024 and 1600x1200. Users with widescreen (16:9 or 16:10) monitors have different aspect ratio requirements for wallpaper, although images designed for standard (4:3) monitors can often be scaled or cropped to the correct shape without undue loss of quality. Wallpapers are sometimes available in double-width versions (e.g. 2560×1024) for displaying on multi-monitor computers, where the image appears to fill two monitors. Some display systems allow unconventionally-proportioned images (1:1, 2:1, or even 1:3) to be scaled without change of proportion, to fit the screen, whether it be 16:9 or 4:3. The image would be sized just large enough that one pair of edges touch the edges of the screen, but not all four, as this would unduly distort the image. In these cases, the system's "default" background color is visible around the other two sides of the image. Another common option, particularly for images much smaller than the resolution of the display, is having the image displayed multiple times like a series of tiles. This avoids the distortion of scaling. PNG and JPEG format are common. Some desktop systems, such as Mac OS (version 8.6 or later), KDE (version 3.4 or later), and GNOME, support vector wallpapers (PICT in Mac and SVG in KDE and GNOME). This has the advantage that a single file may be used for screens of any size, or stretched across several screens, without loss of quality. Most display systems are capable of specifying a single colour to use as the background in place of a wallpaper, and some (such as KDE or GNOME) allow colour-gradients to be specified. Early versions of Mac OS and Microsoft Windows allowed for small repeating patterns to tile the desktop.

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. Most species are day-flying so they regularly attract attention. The diverse patterns formed by their brightly coloured wings and their erratic yet graceful flight have made butterfly watching a fairly popular hobby. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (Superfamily Hesperioidea) and the moth-butterflies (Superfamily Hedyloidea). Butterflies exhibit polymorphism, mimicry and aposematism. Some are known to migrate over large distances. Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants. Butterflies are important economically as one of the major agents of pollination. In addition, a number of species are pests, because they can damage domestic crops and trees. Culturally, butterflies are a popular motif in the visual and literary arts.

A castle is a defensive structure seen as one of the main symbols of the Middle Ages. The term has a history of scholarly debate surrounding its exact meaning, but it is usually regarded as being distinct from the general terms fort or fortress in that it describes a building which serves as a residence and commands a specific territory. Roman forts and hill forts were the main antecedents of castles in Europe, which emerged in the 9th century in Carolingian France. The advent of cannon and gunpowder changed the needs of warfare in Europe, limiting the effectiveness of the castle and leading to the rise of the fort.

A celebrity is a widely-recognized or famous person who commands a high degree of public and media attention. The word stems from the Latin verb "celebrere" but they may not become a celebrity unless public and mass media interest is piqued. For example Virgin Director Richard Branson was famous as a CEO, but he did not become a global celebrity until he attempted to circumnavigate the globe in a hot air balloon.

A city is an urban area with a large population and a particular administrative, legal, or historical status. Large industrialized cities generally have advanced systems for sanitation, utilities, land usage, housing, and transportation and more. This close proximity greatly facilitates interaction between people and firms, benefiting both parties in the process. However, there is debate now whether the age of technology and instantaneous communication with the use of the Internet are making cities obsolete. A big city, or metropolis, may have suburbs. Such cities are usually associated with metropolitan areas and urban sprawl, creating large amounts of business commuters. Once a city sprawls far enough to reach another city, this region can be deemed a conurbation or megalopolis.

A cityscape is the urban equivalent of a landscape. Townscape is roughly synonymous with cityscape, though it of course implies the same difference in urban size and density (and even modernity) implicit in the difference between the words city and town. In urban design the terms refer to the configuration of built forms and interstitial space. In the visual arts a cityscape (urban landscape) is an artistic representation, such as a painting, drawing, print or photograph, of the physical aspects of a city or urban area.

A coffin (also known as a casket in North American English) is a funerary box used in the display and containment of deceased remains – either for burial or cremation. Any box used to bury the dead in is a coffin. Use of the word "casket" in this sense began as a euphemism introduced by the undertaker's trade in North America; a "casket" was originally a box for jewelry. Some Americans draw a distinction between "coffins" and "caskets"; for these people, a coffin is a tapered hexagonal or octagonal (also considered to be anthropodial in shape) box used for a burial. A rectangular burial box with a split lid used for viewing the deceased is called a "casket" as seen in the picture above. Receptacles for cremated human ashes (sometimes called cremains) are called urns. A coffin may be buried in the ground directly, placed in a burial vault or cremated. The above ground burial is in a mausoleum. Often it is a large cement building at a cemetery, housing hundreds of bodies, or a small personal crypt. Some countries practice one form almost exclusively;[citation needed] in others, it depends on the individual cemetery. The handles and other ornaments (such as doves, stipple crosses, crucifix, masonic symbols etc.) that go on the outside of a coffin are called fittings (sometimes called 'coffin furniture', not to be confused with furniture that is coffin shaped) while organising the inside of the coffin with drapery of some kind is known as "trimming the coffin". Cultures that practice burial have widely different styles of coffin. In some varieties of orthodox Judaism[specify], the coffin must be plain, made of wood, and contain no metal parts nor adornments. These coffins use wooden pegs instead of nails. In China and Japan, coffins made from the scented, decay-resistant wood of cypress, sugi, thuja and incense-cedar are in high demand.[citation needed] In Africa, elaborate coffins are built in the shapes of various mundane objects, like automobiles or aeroplanes.[citation needed] Sometimes coffins are constructed to display the dead body, as in the case of the glass-covered coffin of Haraldskær Woman on display in the Church of Saint Nicolai in Vejle, Denmark or the glass-coffin of Vladimir Lenin which is in the Red Square in Moscow.. When a coffin or casket is used to transport a deceased person, it can also be called a pall, a term that also refers to the cloth used to cover the coffin.

A comment is generally a verbal or written remark often related to an added piece of information, or an observation or statement.

MySpace is a popular social networking website offering an interactive, user-submitted network of friends, personal profiles, blogs, groups, photos, music and videos for teenagers and adults internationally. Its headquarters are in Beverly Hills, California, USA, where it shares an office building with its immediate owner, Fox Interactive Media; which is owned by News Corporation, which has its headquarters in New York City. Since June 2006, MySpace has been the most popular social networking site in the United States. The company employs 300 staff and does not disclose revenues or profits separately from News Corporation. The 100 millionth account was created on August 6, 2006 in the Netherlands and approximately 106 million accounts on September 8, 2006, and the site attracts 230,000 new users per day.

A cross is a geometrical figure consisting of two lines or bars perpendicular to each other, dividing one or two of the lines in half. The lines usually run vertically and horizontally; if they run diagonally, the design is technically termed a saltire. The cross is one of the most ancient human symbols, and is used by many religions, such as Christianity. It is frequently a representation of the division of the world into four elements (Chevalier, 1997) (or cardinal points), or alternately as the union of the concepts of divinity, the vertical line, and the world, the horizontal line (Koch, 1955).