The promise came after Trump's team failed to follow traditional press protocols and left behind a media pool assigned to cover the president-elect when he flew to Washington to meet with President Obama.
all-. prefix. only: used with many adjectives and nouns to show that something includes only the type of thing or person mentioned. all-. prefix. whole: used with many nouns to show that something includes the whole of something, or all the people or things of that type. all-. prefix. including everything: used with some adjectives and participles to show that something includes everything, or to add emphasis.
People is human beings in general or considered collectively. A person is a human being regarded as an individual.If you are referring to two humans, yes, it would be grammatically correct to say persons. It is definitely a word. It is plural for an individual, but does not refer to a collective group of humans. It could be used in speaking about two humans of a household.