Pronunciation: [plˈe͡ɪnz] (IPA) 
The word "planes" is spelled with a long "a" sound, represented by the IPA symbol /eɪ/. The letter "a" in this context makes the "ay" sound, like in the word "hay." The letter "e" following the "a" indicates that the vowel sound is prolonged. The final "s" is pronounced as a voiced "z" sound, represented by the IPA symbol /z/. Therefore, the correct pronunciation of "planes" is /pleɪnz/.
Planes, in its most common noun form, refers to flat or level surfaces that can be infinite or finite in extent. It is a fundamental concept in geometry and represents a two-dimensional space that extends infinitely in all directions. A plane is completely determined by any three non-collinear points or by a line and a point that is not on the line within it.
In the context of aviation, planes can be defined as fixed-wing aircraft used for transportation, usually powered by jet engines or propellers. They are typically designed to be aerodynamically stable and capable of sustained flight. Planes are commonly used for commercial air travel, transporting passengers and cargo over long distances at high speeds. They facilitate global connectivity and have revolutionized transportation by making it faster and more convenient.
The term "planes" can also be the plural form of the noun "plane," which denotes a tool or instrument used for smoothing, shaping, or removing material from surfaces. Planes are commonly used in woodworking and are composed of a sharp blade or iron attached to a flat base. They are pushed or pulled across a surface to create a smooth finish or to shape it according to desired specifications.
Overall, "planes" refers to geometric concepts, aircraft, or woodworking tools, depending on the specific context in which it is used.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word "planes" originated from the Latin word "plānum", which means "flat surface" or "level ground". It is derived from the Latin verb "plānāre", meaning "to make level or smooth". The term was later assimilated into the English language from Old French as "plane".
