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

     

    lag

     verb
    verb
    BrE BrE//læɡ//
     
    ; NAmE NAmE//læɡ//
     
    Verb Forms present simple I / you / we / they lag
    BrE BrE//læɡ//
     
    ; NAmE NAmE//læɡ//
     
    he / she / it lags
    BrE BrE//læɡz//
     
    ; NAmE NAmE//læɡz//
     
    past simple lagged
    BrE BrE//læɡd//
     
    ; NAmE NAmE//læɡd//
     
    past participle lagged
    BrE BrE//læɡd//
     
    ; NAmE NAmE//læɡd//
     
    -ing form lagging
    BrE BrE//ˈlæɡɪŋ//
     
    ; NAmE NAmE//ˈlæɡɪŋ//
     
     
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  1. 1[intransitive] lag (behind somebody/something) | lag (behind) to move or develop slowly or more slowly than other people, organizations, etc. synonym trail The little boy lagged behind his parents. We still lag far behind many of our competitors in using modern technology.
  2. 2[transitive] lag something (with something) (British English) to cover pipes, etc. with a special material to stop the water in them from freezing, or to save heat synonym insulate
  3. Word Originverb sense 1 early 16th cent. (as a noun in the sense ‘hindmost person in a game, race, etc.’, also ‘dregs’): related to the dialect adjective lag (perhaps from a fanciful distortion of last, or of Scandinavian origin: compare with Norwegian dialect lagga ‘go slowly’). verb sense 2 late 19th cent.: from earlier lag ‘piece of insulating cover’.Extra examples Catering salaries lag far behind those of other sectors. She did well in her first year at school but then started to lag behind. The Tories are still lagging way behind in the opinion polls.
See the Oxford Advanced American Dictionary entry: lag

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