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Keeping this in view, is getaway one word or two?

An escape. (Getaway is an adjective in this example. Like most nouns, getaway can be used as an adjective too.)

Secondly, what is short getaway? If someone makes a getaway, they leave a place quickly, especially after committing a crime or when trying to avoid someone. A getaway is a short holiday somewhere. [informal] Weekend tours are ideal for families who want a short getaway.

Accordingly, what is a weekend getaway?

a place where one escapes for relaxation, vacation, etc., or a period of time for such recreation: a little seaside getaway; a two-week getaway in the Bahamas.

What is the meaning of get away from?

get away from somebody/something. From Longman Dictionary of Contemporary Englishget away from somebody/something phrasal verb1 to avoid something that is difficult or unpleasant for you, or something that limits what you can do in some way I needed to get away from the pressures of work.