HD Aero 11′6″ Bug Slinger™ Echo Inflatable Paddle Board | Inflatable SUP | BOTE

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

6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number.

Aero is a Greek prefix relating to flight and air. In British English, it is used as an adjective related to flight (e.g., as a shortened substitute for aeroplane).

Aero, Ærø, or Aeros may refer to:

In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, a building, or the walls of enclosed and empty rooms.

An inflatable is an object that can be inflated with a gas, usually with air, but hydrogen, helium, and nitrogen are also used. One of several advantages of an inflatable is that it can be stored in a small space when not inflated, since inflatables depend on the presence of a gas to maintain their size and shape. Function fulfillment per mass used compared with non-inflatable strategies is a key advantage. Stadium cushions, impact guards, vehicle wheel inner tubes, emergency air bags, and inflatable space habitats employ the inflatable principle. Inflation occurs through several strategies: pumps, ram-air, blowing, and suction.

Although the term inflatable can refer to any type of inflatable object, the term is often used in boating to specifically refer to inflatable boats.

A paddle is a handheld tool with an elongated handle and a flat, widened end (the blade) used as a lever to apply force onto the bladed end. It most commonly describes a completely handheld tool used to propel a human-powered watercraft by pushing water in a direction opposite to the direction of travel (i.e. paddling). A paddle is different from an oar (which can be similar in shape and perform the same function via rowing) – an oar is attached to the watercraft via a fulcrum.

The term "paddle" can also be used to describe objects of similar shapes or functions:

• A rotating set of paddle boards known as a paddle wheel is used to propel a steamboat or paddle steamer.
• In a number of racquet sports (e.g. ping-pong and paddle ball), a "paddle" or "bat" is a short, solid racket used to strike a ball.
• A mixing paddle is a device used to stir or mix separate ingredients within a mixture.
• A spanking paddle is used in corporal punishment, typically to forcefully hit someone (e.g. a juvenile) on the buttocks.

Sup or SUP may refer to:

• Saskatchewan United Party, a political party in Saskatchewan
• Supremum or sup, in mathematics, the least upper bound
• Societas unius personae, proposed EU type of single-person company
• SUP Media or Sup Fabrik, a Russian internet company
• Sailors' Union of the Pacific
• Scottish Unionist Party (1986), established in the mid-1980s
• Simple Update Protocol, dropped proposal to speed RSS and Atom
• Software Upgrade Protocol
• Standup paddleboarding
• Stanford University Press
• Sydney University Press
• Syracuse University Press
• Sup squark, the supersymmetric partner of the up quark
• <sup>, an HTML tag for superscript
• Supangle or sup, a Turkish dessert