Formal English uses standardized 'correct' grammar and spelling etc. and is usually used in formal writing.
Informal English allows contractions and lax use of grammar and pronunciation, corresponfing to how the language is usually spoken.
the two types of definition are the formal and informal definition.
Smoking
Yes, English slang is.
45ytergergsrg
In law, the resolution of a dispute outside of the mechanism of the courts.
informal organization definition
Informal balance is when a picture is not symmetrical. (asymmetrical)
the two types of definition are the formal and informal definition.
mola
Smoking
Informal slang for nose
nothiiing
"Crammy" is not a standard English word and may be a slang or informal term. Without more context, it is difficult to provide a specific definition.
Inform you nalanh mamaya!
Dafuq!
informal English is up my bum
The interjection "Hi!" is an informal greeting which is very widely used. Because of its informal nature, you would not use it in greeting, for example, a person of great authority. Nonetheless, its wide usage makes it very much part of the English language. What constitutes "proper" will depend on your definition. Do you mean "formal", or do you mean "used by English speakers"?