3-IN-ONE Professional Garage Door Lubricant Spray, 11 oz.

Eleven or 11 may refer to:

• 11 (number), the natural number following 10 and preceding 12
• one of the years 11 BC, AD 11, 1911, 2011, or any year ending in 11

3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious and cultural significance in many societies.

A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a doorway or portal. A door's essential and primary purpose is to provide security by controlling access to the doorway (portal). Conventionally, it is a panel that fits into the doorway of a building, room, or vehicle. Doors are generally made of a material suited to the door's task. They are commonly attached by hinges, but can move by other means, such as slides or counterbalancing.

The door may be able to move in various ways (at angles away from the doorway/portal, by sliding on a plane parallel to the frame, by folding in angles on a parallel plane, or by spinning along an axis at the center of the frame) to allow or prevent ingress or egress. In most cases, a door's interior matches its exterior side. But in other cases (e.g., a vehicle door) the two sides are radically different.

Many doors incorporate locking mechanisms to ensure that only some people can open them (such as with a key). Doors may have devices such as knockers or doorbells by which people outside announce their presence. Apart from providing access into and out of a space, doors may have the secondary functions of ensuring privacy by preventing unwanted attention from outsiders, of separating areas with different functions, of allowing light to pass into and out of a space, of controlling ventilation or air drafts so that interiors may be more effectively heated or cooled, of dampening noise, and of blocking the spread of fire.

Doors can have aesthetic, symbolic, ritualistic purposes. Receiving the key to a door can signify a change in status from outsider to insider. Doors and doorways frequently appear in literature and the arts with metaphorical or allegorical import as a portent of change.

A garage is a covered structure built for the purpose of parking, storing, protecting, maintaining, and/or repairing vehicles. Specific applications include:

• Garage (residential), a building or part of a building for storing one or more vehicles
• Automobile repair shop, also called a garage, where vehicles are serviced and repaired
• Bus garage, a building or complex used for storage of buses when not in use
• Filling station, an automotive service station where vehicles take on fuel or recharge
• Multistorey car park, or parking garage, a building serving as a public parking facility

Other meanings of garage may include:

A lubricant (sometimes shortened to lube) is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces. The property of reducing friction is known as lubricity.

In addition to industrial applications, lubricants are used for many other purposes. Other uses include cooking (oils and fats in use in frying pans and baking to prevent food sticking), to reduce rusting and friction in machinery, through the use of Motor oil and grease, bioapplications on humans (e.g., lubricants for artificial joints), ultrasound examination, medical examination, and sexual intercourse. It is mainly used to reduce friction and to contribute to a better, more efficient functioning of a mechanism.

A professional is a member of a profession or any person who works in a specified professional activity. The term also describes the standards of education and training that prepare members of the profession with the particular knowledge and skills necessary to perform their specific role within that profession. In addition, most professionals are subject to strict codes of conduct, enshrining rigorous ethical and moral obligations. Professional standards of practice and ethics for a particular field are typically agreed upon and maintained through widely recognized professional associations, such as the IEEE. Some definitions of "professional" limit this term to those professions that serve some important aspect of public interest and the general good of society.

In some cultures, the term is used as shorthand to describe a particular social stratum of well-educated workers who enjoy considerable work autonomy and who are commonly engaged in creative and intellectually challenging work.

Spray or spraying commonly refer to:

• Spray (liquid drop)
  • Aerosol spray
  • Blood spray
  • Hair spray
  • Nasal spray
  • Pepper spray
  • PAVA spray
  • Road spray or tire spray, road debris kicked up from a vehicle tire
  • Sea spray, refers to aerosol particles that form in the ocean
• Spraying, or the creation of a spray
  • Spraying (animal behavior), the action of an animal marking its territory with urine
  • The use of a spray bottle
  • The use of a sprayer
  • Aerial application of chemicals
  • Spray painting

Spray or spraying may also refer to: