Definition from Wiktionary, the free dictionary
- (UK) enPR: bŏb, IPA: /bɒb/, X-SAMPA: /bQb/
- Rhymes: -ɒb
- (US) enPR: bäb, bôb, IPA: /bɑb/, /bɔb/, X-SAMPA: /bAb/, /bOb/
Proper noun 
- A diminutive of the male given name Robert.
- In various fields such as cryptography and physics, a conventional name for the person or system that receives a message from another person or system conventionally known as Alice.