Definitions

1. noun

a person who continually finds fault or complains, often in a petty or annoying way

“The nagging voice in her head was getting on her nerves.”

2. verb

to tease or annoy someone repeatedly, often with a persistent and petty criticism

“My sister nags me about my messy room every day.”

3. verb

to cause something to move or to be moved in a nagging or persistent way

“The wind nags against the door, causing it to creak.”