I do not understand the question. Please ask again, but reword the question.
Bisection.
No, onto is a compound word which is one word.
It is used as one word.
no it is not an one word it is of two word
Hipbone is one word.
I think the word "ongoing" is only one word, but it has two syllables that are two separate words.
night because night is one word and time is added onto it
The word "hairbrush" is typically written as one word, not two.
It is one word.
one word
One word, two syllables
yes