refers to a type of fish that belongs to the family Cyprinidae.

can refer to a person who complains or grumbles.

शिकायत करने वाला

English Usage: He is always carp about the service at restaurants.

Hindi Usage: वह हमेशा रेस्तरां में सेवा के बारे में शिकायत करता है।

a parasitic insect that infests mammals, especially humans.

can be used colloquially to refer to a contemptible or despicable person.

नीच व्यक्ति

English Usage: He is nothing but a louse in the community.

Hindi Usage: वह समुदाय में सिर्फ एक नीच व्यक्ति है।