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seal·er | \ ˈsē-lər 
\
\Definition of sealer
(Entry 1 of 2)
1 : an official who attests or certifies conformity to a standard of correctness
2a : a coat (as of size) applied to prevent subsequent coats of paint or varnish from sinking in
b : a compound applied to grout especially to repel moisture and prevent staining
Cleaned or newly colored grout will stay that way longer, and be easier to clean, if the grout is coated with a sealer.— Gene Austin
sealer
noun (2)Definition of sealer (Entry 2 of 2)
: a person or a ship engaged in hunting seals
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The first known use of sealer was in the 15th century
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