Noun sealer has 2 senses
  1. sealant, sealer - a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface)
    --1 is a kind of sealing material
    Derived forms: verb seal5, verb seal2
  2. sealer - an official who affixes a seal to a document
    --2 is a kind of
    official, functionary
    Derived forms: verb seal4, verb seal1
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