1. With some degree of certainty (but not certain); more likely than not
   "He is probs out of the country";
   - probably, likely, in all likelihood, in all probability, belike [archaic], prolly [slang]

1. A source of difficulty
   "one prob after another delayed the job";
   - trouble, problem, ill
    
2. A state of difficulty that needs to be resolved
   "she and her husband are having probs";
   - problem, job

Type of: difficultness, difficulty