1 of 2

noun (1)

seal·​er ˈsē-lər How to pronounce sealer (audio)
: an official who attests or certifies conformity to a standard of correctness
: a coat (as of size) applied to prevent subsequent coats of paint or varnish from sinking in
: 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


2 of 2

noun (2)

: a person or a ship engaged in hunting seals

Examples of sealer in a Sentence

Recent Examples on the Web
Prevent Patio Stains in the First Place A concrete sealer is the best option to avoid stains on a cement patio. Nafeesah Allen, Better Homes & Gardens, 10 Jan. 2024 John Szabo, the City librarian and sealer of the deal, promises the library won’t suddenly start flogging books for sale. Boris Kachka, Los Angeles Times, 13 Jan. 2024 Kitchen gadgets are in abundance too, like a knife sharpener, digital meat thermometer, and vacuum sealer machine. Amy Schulman, Peoplemag, 17 Feb. 2024 One person applies the sealer using a hand-pump garden sprayer. Tim Carter, Chicago Tribune, 26 Jan. 2024 Keep your snacks fresher for longer with an easy-to-use bag sealer. Claire Rutter, Rolling Stone, 5 Jan. 2024 The air from the blower drives the sealer deep into the brick and mortar. Tim Carter, Chicago Tribune, 26 Jan. 2024 The issue is related to the assembly process for some vehicles due to the sealer used to secure the rear window coming in contact with the defroster's heating elements. Aimee Picchi, CBS News, 23 Jan. 2024 This set from Zwilling comes with a large food storage container, small and medium vacuum sealer bags, and a vacuum sealer machine. Amanda Ogle, Southern Living, 11 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sealer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

Noun (1)

15th century, in the meaning defined at sense 1

Noun (2)

1770, in the meaning defined above

Time Traveler
The first known use of sealer was in the 15th century

Dictionary Entries Near sealer

Cite this Entry

“Sealer.” Dictionary, Merriam-Webster, Accessed 26 May. 2024.

Kids Definition


1 of 2 noun
seal·​er ˈsē-lər How to pronounce sealer (audio)
: an official who certifies weights and measures
: a substance used on a surface to be painted that prevents the paint from sinking in


2 of 2 noun
: a person or a ship engaged in hunting seals

More from Merriam-Webster on sealer

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