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seal

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verb [transitive] seal pronunciation in British English /siːl/ 
Word Forms
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present tense
I/you/we/theyseal
he/she/itseals
present participlesealing
past tensesealed
past participlesealed
  1. seal

    or

    seal up

    to close a container or space by covering it with something so that air or other substances cannot get in or out
    seal something with something:

    Seal the box with tape.

    Small gaps can be sealed with wax.

    Synonyms and related words for this sense of seal

phrases

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selfie stick

an expandable stick which you attach to a mobile phone or camera to help you take a selfie …

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