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jack

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verb jack pronunciation in British English /dʒæk/ 
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present tense
I/you/we/theyjack
he/she/itjacks
present participlejacking
past tensejacked
past participlejacked

pre-roll

a video advertisement that appears immediately before an online video

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breakfast rave

a rave … that takes place early in the morning and where there is no alcohol or drugs …

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