The 5 letter word is "shown". Add the letter n to the word show.
I got "owner" because the next one is "own" and the clue is TAKE AWAY TWO LETTERS and if you take off "-er" then you get "own." Following those rules, the correct answer is "shown."
A four letter word meaning the foundation of something is base.
place something in an envelope together with a letter
Urge
hill
have
One answer could be "chair" (hair, air).
A ten letter word for something that occurs could be an occurrence or happenings.
Generic means something that is not have a specialty, something that is generic. Generic means ordinary, nonspecific. It is similar to others in the same group.
contribute
unaided
Perhaps 'gist'? As in, "to get the gist of something"?