Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Origin: Probably from a Scandinavian language

lag

1 verb
     
Related topics: Household
lag1 past tense and past participle lagged, present participle lagging
1 [intransitive and transitive] to move or develop more slowly than others
lag behind
She stopped to wait for Ian who was lagging behind.
Britain is lagging behind the rest of Europe.
2 [transitive] British EnglishDH to cover water pipes etc with a special material to prevent the water inside them from freezing or the heat from being lost:
We've had the hot-water tank lagged.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
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