seal off

Verb
  1. Make tight;
    Secure against leakage (synset 201356709)
    "seal the windows"
    is a type of: close, shut - move so that an opening or passage is obstructed; make shut
    subtypes:
    same as: seal
    verb group: seal - close with or as if with a seal
  2. Impose a blockade on (synset 201129272)
    is a type of: beleaguer, besiege, circumvent, hem in, surround - surround so as to force to give up
    same as: blockade

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