Bloodsucker and Mosquito

Bloodsucker noun - A person who is supported by or seeks support from another without making an adequate return.

Mosquito and bloodsucker are semantically related. In some cases you can use "Mosquito" instead a noun "Bloodsucker".

Mosquito noun - Two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals.

Bloodsucker and mosquito are semantically related. Sometimes you can use "Bloodsucker" instead a noun "Mosquito".