An abbreviation is a shortening of something, usually a name. For example, 'fridge' instead of 'refrigerator' or 'Jan' instead of January. Initialisms are actually a type of abbreviation. Instead of abbreviating to a shortened form of the word, initialisms just use the initials of that particular name. For example 'NFL' instead of the 'National Football League' or 'LOL' instead of 'Laugh out Loud'.
Nothing as they are both abbreviations for mathematics.
Nothing, just two different abbreviations for Proof.
British Petroleum. Technically it's an acronym not an abbreviation. An abbreviation is a shortened version of a word, such as abbr. for abbreviation. An acronym is any combination of abbreviations, contractions or initialisms. BP is an initialism and is therefore an acronym.
Initialisms
The expected answer here is probably "acronym," but many people distinguish between acronyms and initialisms and would say that the answer depends on whether the result is pronounced as a word.The distinction is that acronyms must be pronounced as a word, while initialisms are pronounced as separate letters. "FBI" and "UFO" are initialisms; "radar" and "OPEC" are acronyms.
The abbreviations for centimeters of water are cmH2O and cm H2O. The only difference being a space between the two sets of letters.
Abbreviations that are commonly accepted and understood in the relevant field or context are generally permitted. Some common types of abbreviations include acronyms (e.g. NASA - National Aeronautics and Space Administration), initialisms (e.g. FBI - Federal Bureau of Investigation), and shortened forms (e.g. Rd. for Road). It is important to ensure that the abbreviation is widely recognized and does not lead to confusion in communication.
We have no idea what you mean. Please re-submit the question and don't use abbreviations.
A shortened word or words are commonly referred to as "abbreviations." These can include acronyms, where the initial letters of a phrase are used to create a new word (e.g., NASA), or initialisms, which are pronounced letter by letter (e.g., FBI). Other forms of shortening include contractions, such as "can't" for "cannot."
To abbreviate materials, you typically use standardized acronyms or initialisms based on the full name of the material. For example, "polyethylene" can be abbreviated as "PE," and "carbon fiber" can be shortened to "CF." In some cases, industry-specific guidelines or conventions may dictate the appropriate abbreviations. Always ensure that the abbreviation is clear and recognizable to your intended audience.
Newton- Sir Isaac Newton newton- a unit of measure units of measure are not capitalised, though their abbreviations may be: one newton = 1 N, one pascal = 1 Pa
The abbreviations are PL.