Question: How many official usages are there for the word "jib"?
About the article "Snowboarding", section "Jibbing".

Candidate passages:
Bayahíbe is an indigenous word.
Its meaning is not known for sure, but there are many names that include the tainos word Baya.
"Baya" is the name given to it to a bivalve mollusk, like clams that are glued to the rocks or roots of mangrove trees.
"Jib", or "Hib" (is the same word) is the name that gave the Indians a sort of sieve manufactured from sticks used to sift cassava flour. 
Boats may be sailed using a jib alone, more commonly jib(s) make a minor direct contribution to propulsion, compared to a main sail.
Generally, a jib's most crucial function is as an airfoil, increasing performance and overall stability by reducing turbulence on the main sail's leeward side.
On boats with only one jib, it is common for the clew of the jib to be further aft than the mast, meaning the jib and mainsail overlap.
An overlapping jib is called a "genoa jib" or simply a genoa (see illustration).
These are efficiently used when reaching more broadly than a close reach.
Alternatively, a boat may carry smaller jibs, to compensate aerodynamics when the main sail is reefed; these more rugged sails are called "storm jibs" or "spitfires".
On a boat with two staysails the inner sail is called the "staysail", and the outer (foremost) is called the jib.
This combination of two staysails is called a "cutter rig" (or a "yankee pair") and a boat with one mast rigged with two staysails and a mainsail is called a cutter.
On cruising yachts with more than one jib, it is common for the innermost jib to be self-tacking, either by using a boom along the foot of the sail, or by cleating the jib sheet to a track, or both.
On other cruising yachts, and nearly all racing sailboats, the jib needs to be worked when tacking.
On these yachts, there are two sheets attached to the clew of the jib.
As the yacht comes head to wind during a tack, the active sheet is released, and the other sheet (the "lazy sheet") on the other side of the boat is pulled in.
This sheet becomes the new "active sheet" until the next tack. 
There are two common pronunciations for the word:  and The former pronunciation follows the general pattern in English whereby metric units are pronounced with the stress on the first syllable, and the pronunciation of the actual base unit does not change irrespective of the prefix.
It is generally preferred by the British Broadcasting Corporation (BBC) and the Australian Broadcasting Corporation (ABC).
Many scientists and other users, particularly in countries where the metric system is not widely used, use the pronunciation with stress on the second syllable.
The latter pronunciation follows the stress pattern used for the names of measuring instruments (such as "micrometer", "barometer", "thermometer", "tachometer" and "speedometer").
The problem with this reasoning, however, is that the word "meter" in those usages refers to a measuring device, not a unit of length.
The contrast is even more obvious in countries using the English rather than American spelling of the word "metre".
When Australia introduced the metric system in 1975, the first pronunciation was declared official by the government's Metric Conversion Board.
However, the Australian Prime Minister at the time, Gough Whitlam, insisted that the second pronunciation was the correct one because of the Greek origins of the two parts of the word. 
Tower Cranes are used extensively in construction and other industry to hoist and move materials.
There are many types of tower cranes.
Although they are different in type, the main parts are the same, as follows:  Mast: the main supporting tower of the crane.
It is made of steel trussed sections that are connected together during installation.
Slewing Unit: the slewing unit sits at the top of the mast.
This is the engine that enables the crane to rotate.
Operating Cabin: the operating cabin sits just above the slewing unit.
It contains the operating controls.
Jib: the jib, or operating arm, extends horizontally from the crane.
A "luffing" jib is able to move up and down; a fixed jib has a rolling trolley that runs along the underside to move goods horizontally.
Hook: the hook (or hooks) is used to connect the material to the crane.
It hangs at the end of thick steel cables that run along the jib to the motor.
Weights: Large concrete counterweights are mounted toward the rear of the mast, to compensate for the weight of the goods lifted.
A tower crane is usually assembled by a telescopic jib (mobile) crane of greater reach (also see "self-erecting crane" below) and in the case of tower cranes that have risen while constructing very tall skyscrapers, a smaller crane (or derrick) will often be lifted to the roof of the completed tower to dismantle the tower crane afterwards, which may be more difficult than the installation. 
A hapa is a person of mixed ethnic heritage.
The term originates in Hawaii from the Hawaiian word for "part" or "mixed".
In Hawaii, the word refers to any person of mixed ethnic heritage, regardless of the specific mixture.
In California, the term has recently been used to describe any person of part Asian or Pacific Islander descent, therefore there are two concurrent usages (one in Hawaii, one in California).