seam

American  

[seem] / sim /

noun

1. the line formed by sewing together pieces of cloth, leather, or the like.

2. the stitches used to make such a line.

3. any line formed by abutting edges.

4. any linear indentation or mark, as a wrinkle or scar.

5. Knitting. a line of stitches formed by purling.

6. Geology. a comparatively thin stratum; a bed, as of coal.

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verb (used with object)

1. to join with or as if with stitches; make the seam or seams of.

2. to furrow; mark with wrinkles, scars, etc.

3. Knitting. to knit with or in a seam.

verb (used without object)

1. to become cracked, fissured, or furrowed.

2. Knitting. to make a line of stitches by purling.

seam British  

/ siːm /

noun

1. the line along which pieces of fabric are joined, esp by stitching

2. a ridge or line made by joining two edges

3. a stratum of coal, ore, etc

4. a linear indentation, such as a wrinkle or scar

5. surgery another name for suture

6. (modifier) cricket of or relating to a style of bowling in which the bowler utilizes the stitched seam round the ball in order to make it swing in flight and after touching the ground

   a seam bowler

7. full to overflowing

8. dialect doing well, esp financially

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verb

1. (tr) to join or sew together by or as if by a seam

2. to make ridges in (knitting) using purl stitch

3. to mark or become marked with or as if with a seam or wrinkle

seam Scientific  

/ sēm /

1. A thin layer or stratum, as of coal or rock.

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seam Idioms  

1. see burst at the seams; come apart at the seams.

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Other Word Forms

• seamer
  noun
• underseam
  noun

Etymology

Origin of seam

before 1000; Middle English seme (noun), Old English sēam; cognate with German Saum hem; akin to sew ¹, Greek hymḗn membrane ( see hymen)

Explanation

When you sew two pieces of fabric together, the line you are sewing is the seam. Coal appears in long, linear underground deposits referred to as seams. A garment that is coming to pieces will often first tear at the seams, the weakest parts. People use this image to describe anything that has reached a point where it is simply not holding together––your car could be falling apart at the seams, or if there's been a lot of stress in your life, you could be too — and you might have to move into a seamy neighborhood.

Example Sentences

Seam bowler Eshan Malinga has been named in the squad despite suffering a shoulder injury against England on Sunday.

From Barron's • Feb. 2, 2026

Seam movement has been the key, and it is increasing.

From BBC • Nov. 26, 2025

He set up a production company, Red Seam, to develop specifically Welsh stories.

From The Guardian • Apr. 6, 2020

At its height, the Marianna mine employed 900 people to mine its corner of the Pittsburgh Seam, whose coal contains more energy per volume than any other coal seam in the country.

From Washington Times • May 21, 2016

“That’s the Number Four Pocahontas Seam, the finest and purest soft coal in the world. These lines I’ve drawn represent the tunnels we’ve driven through it since the mine has been operational.”

From "October Sky" by Homer Hickam

Related Words

• hem
• joint
• pleat