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Definition of bob verb from the Oxford Advanced Learner's Dictionary

bob

verb
 
/bɒb/
 
/bɑːb/
Verb Forms
present simple I / you / we / they bob
 
/bɒb/
 
/bɑːb/
he / she / it bobs
 
/bɒbz/
 
/bɑːbz/
past simple bobbed
 
/bɒbd/
 
/bɑːbd/
past participle bobbed
 
/bɒbd/
 
/bɑːbd/
-ing form bobbing
 
/ˈbɒbɪŋ/
 
/ˈbɑːbɪŋ/
Phrasal Verbs
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  1. [intransitive, transitive] to move or make something move quickly up and down, especially in water
    • a plastic bottle bobbing along in the current
    • bob up and down Tiny boats bobbed up and down in the harbour.
    • bob something (up and down) She bobbed her head nervously.
    • The maid bobbed a curtsy.
    Oxford Collocations Dictionaryadverb
    • gently
    • slightly
    • about
    phrases
    • bob up and down
    See full entry
  2. [transitive] bob something to cut somebody’s hair so that it is the same length all the way aroundTopics Appearancec2
  3. Word Originverb sense 1 late Middle English: of unknown origin. verb sense 2 late Middle English (denoting a bunch or cluster): of unknown origin.
See bob in the Oxford Advanced American Dictionary
unclear
adjective
 
 
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