Pronunciation: [ˈe͡ɪpɛks] (IPA) 
The word "apex" is spelled with the /eɪ/ diphthong, which represents the long vowel sound /eɪ/ in English. This sound is a combination of two vowel sounds: /e/ and /ɪ/, which create a sliding sound from one to the other. The letter "a" represents the /eɪ/ sound in "apex", followed by the letters "p" and "ex". The word "apex" means the highest point or peak of something, and can refer to a physical object or an abstract concept.
Apex is a noun that has several meanings depending on the context in which it is used. Here is an extensive definition of apex encompassing its various connotations:
1. In geometry, apex refers to the highest point or the vertex of a shape, often indicating the peak of a triangle or the summit of a cone or pyramid.
2. In biology, apex denotes the tip or uppermost point of a structure, such as the growing tip of a plant shoot or the highest point on an animal's head.
3. In astronomy, apex identifies the point in the sky toward which the Earth's motion is currently moving, especially in relation to the stars.
4. In business and finance, apex refers to the highest or most successful point of a company, market, or industry, suggesting the culmination of growth, achievement, or financial performance.
5. In sports, apex is used to describe the highest level of achievement, skill, or performance in a particular discipline or sport, such as reaching the apex of one's career or being at the apex of a sports league.
6. In general usage, apex can also denote the pinnacle, climax, or summit of something, indicating the absolute height or culmination of a process, idea, or experience.
Overall, the term apex conveys the idea of a highest or uppermost point, whether it be physical, metaphorical, or symbolic, within various domains of knowledge, industry, or human endeavor.
The extremity of a conical or pyramidal structure, such as the heart or the lung.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
* 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 "apex" has its origin in Latin. It comes from the Latin word "apex" which means "the top, summit, or tip". The Latin word itself is derived from the even older Proto-Indo-European root "*ap-", meaning "to grasp, take, or reach". The term "apex" was first used in English in the late 16th century and has retained its original sense of referring to the highest point or summit of something.
