1. Closed or squeezed together tightly
   "his clenched teeth"; "a clenched fist"

1. Hold in a tight grasp
   "clench a steering wheel";
   - clinch
    
2. Squeeze together tightly
   "clench one's jaw"

See also: tight

Type of: clutch, prehend [archaic], seize, squeeze, take hold, take hold of

Encyclopedia: Clench, Wiltshire