1. (

• bob

) move up and down repeatedly; "her rucksack bobbed gently on her back" ;

2. (

• bobsled ,
• bob ,

) ride a bobsled; "The boys bobbed down the hill screaming with pleasure" ;

3. (

• dock ,
• tail ,
• bob

) remove or shorten the tail of an animal ;

4. (

• curtsy ,
• bob

) make a curtsy; usually done only by girls and women; as a sign of respect; "She curtsied when she shook the Queen's hand" ;

5. (

• bob

) cut hair in the style of a bob; "Bernice bobs her hair these days!" ;