Aera (애라) combines the Korean ae (love) and ra (silk or pure white) — meaning "loving silk" or "heavenly love." A traditional Korean feminine name.
Aera is widely used in Korea.
Aera does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Aera reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.