Ballard
biographical name
Bal·lard ˈba-lərd 
Robert Duane 1942– American oceanographer
- coop (up)
- coop up
- cooped
- cooped (up)
- cooped up
- cooper
- Cooper City
- Cooper pair
- cooper's flag
- Cooper's hawk
- cooper's reed
- Cooper-Hewitt lamp
- cooperage
- cooperages
- cooperant
- cooperate
- cooperate (with)
- cooperate with
- cooperated
- cooperated (with)
- cooperated with
- cooperates
- cooperates (with)
- cooperates with
- cooperating