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• Mason jar
  Mason jar

  noun

  a glass jar with a wide mouth and an airtight screw top, much used in home canning.
• mason jar
  mason jar

  noun

  an airtight glass jar for preserving food

Mason jar

American  

noun

1. a glass jar with a wide mouth and an airtight screw top, much used in home canning.

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mason jar British  

noun

1. an airtight glass jar for preserving food

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Etymology

Origin of Mason jar

1880–85, named after John L. Mason, 19th-century American who patented it in 1858

Example Sentences

See Examples For:

Mason jar mason jar

Here, she discusses her self-talk in the mirror, the significance of her Mason jar and the giant middle finger on her closet floor.

From The Wall Street Journal ● Feb. 16, 2026

Place the fine-cut chard stems in a Mason jar or other heatproof narrow container.

From Seattle Times ● Feb. 9, 2024

Conversely, the "Mason jar" method involves snipping the bottoms of your herb stems, storing the herbs upright in a jar with about an inch of fresh, cool water, and then sealing completely before refrigerating.

From Salon ● Jul. 18, 2023

And she shows up with this Mason jar.

From Los Angeles Times ● May 12, 2023

And Miss Love wouldn’t have to bring a quart Mason jar full of hot coffee down to the store for him every morning like she’d been doing.

From "Cold Sassy Tree" by Olive Ann Burns

Pour the slices into a mason jar or glass container and mash with a fork.

From Salon ● Jun. 20, 2026

We loaded them into a giant mason jar, but it was too late.

From Los Angeles Times ● May 8, 2026

I keep the dry mix for Giddy-Up in a small mason jar in the refrigerator so it's ready to go anytime and I highly suggest you do the same, especially if you're in a salad-slump.

From Salon ● Jul. 20, 2023

The sauce can be made and refrigerated in a glass mason jar up to one week in advance.

From Washington Times ● May 28, 2023

My hands were deep in a tub of soapy water, cleaning out one dusty mason jar after another, while Miss Sadie rocked steadily in her porch rocker.

From "Moon Over Manifest" by Clare Vanderpool