Pronunciation: [ɛsˈɛnʃəz] (IPA) 
The word "essentias" is not a correct spelling in English. Perhaps the intended word is "essentials". In IPA phonetic transcription, the correct pronunciation of essentials is /ɪˈsɛnʃəlz/. The stress is on the second syllable, "sen", and it ends with a "z" sound since it is a plural noun. This word refers to the basic necessities or fundamental elements that are required for a particular activity, process or system.
Essentias is not a recognized English word, and thus, there is no dictionary definition available for it. It is possible that the word you are looking for is "essential," which is a common term used in English. If you are referring to "essential," here is a dictionary definition:
Essential (adjective): (1) absolutely necessary or indispensable; (2) of the utmost importance; (3) fundamental or basic.
Essential refers to something that is crucial, indispensable, or of great importance. It implies that a particular thing or quality is necessary for the functioning or completeness of something else. For example, water is essential for human survival, meaning it is absolutely necessary for sustaining life. In a broader context, the term can be used to describe aspects that are fundamental or basic, such as essential skills for a certain profession or the essential elements of a successful business. The concept of essentiality often revolves around identifying what is fundamental or critical, without which a particular system or entity would be incomplete or compromised.
