splinter

American  

[splin-ter] / ˈsplɪn tər /

noun

1. a small, thin, sharp piece of wood, bone, or the like, split or broken off from the main body.

   Synonyms:

   sliver

2. splinter group.

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verb (used with object)

1. to split or break into splinters.

2. to break off (something) in splinters.

3. to split or break (a larger group) into separate factions or independent groups.

4. Obsolete. to secure or support by a splint or splints, as a broken limb.

verb (used without object)

1. to be split or broken into splinters.

2. to break off in splinters.

   Synonyms:

   split, part, separate

splinter British  

/ ˈsplɪntə /

noun

1. a very small sharp piece of wood, glass, metal, etc, characteristically long and thin, broken off from a whole

2. a metal fragment, from the container of a shell, bomb, etc, thrown out during an explosion

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verb

1. to reduce or be reduced to sharp fragments; shatter

2. to break or be broken off in small sharp fragments

Other Word Forms

• splinterless
  adjective
• splintery
  adjective
• unsplintered
  adjective

Etymology

Origin of splinter

1350–1400; Middle English < Middle Dutch or Middle Low German; cf. splint

Explanation

A splinter is a narrow, pointed sliver that breaks off something larger. If you walk barefoot on a wooden floor, dock, or boardwalk, you might get a splinter of wood in your foot. Ouch! We often use the word splinter to refer to tiny shards of wood that lodge under the skin, but a sliver of any hard material — stone, glass, bone, wood, metal — can be called a splinter. When something splinters, it breaks into individual bits. You can also use the word figuratively to describe something that separates in a violent or forceful way, like when a mainstream political party splinters into more or less extreme groups.

Example Sentences

The county’s steps haven’t stopped the chaos: A splinter group from the condo now has elected a new board, which claims to have rightful control over the property.

From The Wall Street Journal • May 1, 2026

Some interpreted McVay’s demeanor on Thursday night as evidence of a splinter in one of the league’s most successful partnerships.

From Los Angeles Times • Apr. 25, 2026

But regional cooperation doesn’t need to splinter the world entirely.

From Barron's • Mar. 4, 2026

But recently, the AI trade has started to splinter.

From MarketWatch • Dec. 23, 2025

There was something wedged under his skin—some kind of metal splinter, he thought, though he couldn’t remember where or when he’d gotten it.

From "Zeitoun" by Dave Eggers

Related Words

• disintegrate
• fracture
• rive
• shatter
• smash
• split