bookworm

noun

1. A person who loves reading and spends a lot of time reading books.

   B1

   countableinformal

   • "My sister is a bookworm; she always has a novel in her bag."A2
   • "As a lifelong bookworm, he had turned the spare room into a library that spanned floor to ceiling."C1

2. An insect or insect larva that damages books by feeding on their paper and bindings.

   C1

   countable

   • "The old manuscript was riddled with holes left by a bookworm."C1