WordWeb Online

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

1. Someone (especially a woman) who annoys people by constantly finding fault
   - scold, scolder, nagger, common scold
    
2. An old or over-worked horse
   - hack, jade, plug [N. Amer, informal]

Sounds like: knag

Derived forms: nagging, nags, nagged

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

Encyclopedia: Nag, Martin