1. A situation from which extrication is difficult especially an unpleasant or trying one
   "the woeful plight of homeless people";
   - predicament, quandary
    
2. [archaic] A solemn pledge of fidelity
   "He gave his plight to serve the community";
   - troth [archaic]

1. Promise solemnly and formally
   "He plighted his troth to her";
   - pledge
    
2. Give to in marriage
   "He plighted his daughter to the nobleman";
   - betroth [archaic], engage, affiance [literary]

Derived forms: plighted, plighting, plights

Type of: assurance, assure, difficultness, difficulty, pledge, promise, vow