halfway or half way? [closed]

Whether the halfway word is defined on English dictionaries as an adverb/adjective mostly used to indicate that someone or something is At or to a point equidistant between two others, I'm usually drawn to sentences such as the following:

• I'm half way finishing the translation.
• I'm half way in to the second season.
• I'm half way there.
• When I'm half way home. The distant voices fade away.

halfway or half way? Which one is grammatically correct/accepted in order to indicate that someone/something is in the middle or in the course of an action not yet finished?

In case both halfway and half way are correct, How/When do I know which one to use?

Cambridge dictionary lists halfway as one word. Hence, using half the way is unusual.

halfway adjective, adverb in the middle of something, or at a place that is equally far from two other places:

New York City is halfway between Boston and Washington, DC.

I'd like you to look at the diagram that is halfway down page 27.

She started feeling sick halfway through dinner.

(http://dictionary.cambridge.org/dictionary/english/halfway)

I would advise against using half the way.

You can say,

I'm halfway through the translation.

Or

I'm half of the way through the translation.

But unfortunately

I'm half the way to finish the translation.

Is an unfinished translation - it still needs a little work!