—>Already is an adverb (word describing a verb) meaning ‘before or by now.’
Examples: She should have been done already. I already showered.
—>Already is also used to express impatience.
Examples: Just do it already! Why can’t we have dinner already?
—>’All ready’ is a phrase meaning ‘complete’ or ‘finished.’
Examples: We were all ready to do it. Dinner was all ready when our guests arrived.