about Beyond

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Beyond is used as a preposition, adverb or noun. As a noun it means literally 'out of reach'.
Beyond is used in many idioms and expressions. Here are some:
beyond a doubt
beyond the shadow of a doubt
beyond comparison
beyond measure
beyond one's depth
beyond one's means
beyond question
beyond reach
beyond recall
beyond reproach
beyond the call of duty
beyond the pale
can't see beyond the end of one's nose.
The meanings of these special expressions are not difficult to guess, but if they pose a problem to you; just ask.