Only child
"Only child" in a Sentence (2 examples)
An only child is often stereotyped as spoiled.
Tali: It's my father. He's the senior member of the Admiralty Board. He's one of only five people who can overrule the decisions of the Conclave for the good of the Migrant Fleet. Tali: My father is responsible for the lives of seventeen million people -- our entire race is in his hands. And I'm his only child.