An orphan is someone who has lost both parents. Usually, we think of sad little children when we think of orphans, but anyone whose parents have both died is an orphan.
A home for orphans is no substitute for a house with loving parents, even if they're adopted. Bambi, Annie, and Oliver Twist are probably the most famous orphans. Each lost their parents in different ways, but all of them had their lives similarly changed—they felt adrift without a parent to guide them. Orphans often spend lots of time looking for friends or surrogates to fill the gap left by their deceased parents.