1. Remind or urge constantly
   "she nagged to take a vacation"
    
2. Bother persistently with trivial complaints
   "She nags her husband all day long";
   - peck, hen-peck [informal], henpeck [informal]
    
3. Worry persistently
   "nagging concerns and doubts"

1. Someone (especially a woman) who annoys people by constantly finding fault
   "The neighbourhood nag was always complaining about the noise from children playing";
   - scold, scolder, nagger, common scold [archaic]
    
2. An old or over-worked horse
   "The old nag plodded slowly along the road";
   - hack, jade, plug [N. Amer, informal]

Sounds like: knag

Derived forms: nagging, nags, nagged

Type of: complain, disagreeable person, Equus caballus, horse, hoss [US, informal], kick [informal], kvetch [N. Amer, informal], moan, plain [archaic], remind, sound off, unpleasant person, vex, worry

Encyclopedia: Nag, Martin