WordWeb Online

1. [Austral, informal] A very young child (birth to 1 year) who has not yet begun to walk or talk
   "the bub began to cry again";
   - baby, babe [literary], infant, bundle of joy
    
2. [N. Amer] A familiar or insolent term of address for a boy or man

Derived forms: bubs

Type of: child, kid [informal]

Encyclopedia: Bub