Darling and Lovebird

Darling noun - A person or thing that is preferred over others.

Lovebird and darling are semantically related In some cases you can use "Lovebird" instead a noun "Darling".

Lovebird noun - Small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors.

Darling and lovebird are semantically related in person whom another loves topic. You can use "Darling" instead a noun "Lovebird".