The meaning of the word 'completely' as used in the English language as an adverb means "Totally, or utterly." Some synonyms to the word are entirely and quite.
The phrase "some time" means an unspecified amount of time; for example, you might say I would like you to help me work on this project if you have some time. The word sometime means, at some unspecified time; sometime you and I should get together for lunch. And the word sometimes means part of the time but not all of the time; sometimes I have pickles with my lunch, sometimes I don't.
The correct abbrevation for the word hours is HH. Which means A duration of time expressed in hours. Which was quite odd, that's something a lot of Americans are unaware of.
Ordinary?
No, the word 'quite' is not a noun.The word 'quite' is an adverb, a word that modifies a verb, an adjective, or another adverb.Example: It was quite chilly this morning. (the adverb 'quite' modifies the adjective 'chilly')Some people use the word 'quite' as an interjections.Example: It was quite chilly this morning. Quite!
I believe it would be an adjective.
The proper word is 'kaffe'. There used to be (quite some time ago) a kind of slang that placed syllables in the wrong order.
The German word Schweinhund is a quite strong term of abuse and means utter swine, skunk. Quite Literally it means pig dog.
the word "these" can be used to describe some thing, most likely the subject of the sentence(at times). ex. Most of the time, these bees can be quite annoying.
Immobile (though I don't quite understand what you mean by science word)
No, placid is not a negative word. It means to be peaceful or tranquil. which is actually quite pleasant.
I think the word you are looking for is "afford".