Ava vs. Eve: What's the Difference?

Ava and Eve Definitions
Ava
Alternative form of kava
Eve
The evening or day preceding a special day, such as a holiday.
Ava
Same as Kava.
Eve
The period immediately preceding a certain event
The eve of war.
Eve
Evening.
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Eve
The day or night before, usually used for holidays, such as Christmas Eve.
Eve
Evening, night.
Eve
(figurative) The period of time when something is just about to happen or to be introduced
The eve of a scientific discovery
Eve
Evening.
Winter oft, at eve resumes the breeze.
Eve
The evening before a holiday, - from the Jewish mode of reckoning the day as beginning at sunset, not at midnight; as, Christmas eve is the evening before Christmas; also, the period immediately preceding some important event.
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Eve
(Old Testament) Adam's wife in Judeo-Christian mythology: the first woman and mother of the human race; God created Eve from Adam's rib and placed Adam and Eve in the Garden of Eden
Eve
The day before;
He always arrives on the eve of her departure
Eve
The period immediately before something;
On the eve of the French Revolution
Eve
The latter part of the day (the period of decreasing daylight from late afternoon until nightfall);
He enjoyed the evening light across the lake