smear

American  

[smeer] / smɪər /

verb (used with object)

1. to spread or daub (an oily, greasy, viscous, or wet substance) on or over something.

   to smear butter on bread.

2. to spread or daub an oily, greasy, viscous, or wet substance on.

   to smear bread with butter.

3. to stain, spot, or make dirty with something oily, greasy, viscous, or wet.

4. to sully, vilify, or soil (a reputation, good name, etc.).

5. to smudge or blur, as by rubbing.

   The signature was smeared.

6. Slang. to defeat decisively; overwhelm.

   They smeared the home team.

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noun

1. an oily, greasy, viscous, or wet substance, especially a dab of such a substance.

2. a stain, spot, or mark made by such a substance.

3. a smudge.

4. something smeared or to be smeared on a thing, as a glaze for pottery.

5. a small quantity of something spread thinly on a slide for microscopic examination.

6. vilification.

   a smear by a cheap gossip columnist.

smear British  

/ smɪə /

verb

1. to bedaub or cover with oil, grease, etc

2. to rub over or apply thickly

3. to rub so as to produce a smudge

4. to slander

5. slang to defeat completely

6. (intr) to be or become smeared or dirtied

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noun

1. a dirty mark or smudge

2. 1. a slanderous attack

   2. ( as modifier )

      smear tactics

3. a preparation of blood, secretions, etc, smeared onto a glass slide for examination under a microscope

Other Word Forms

• smearer noun
• unsmeared adjective

Etymology

Origin of smear

before 900; (v.) Middle English smeren, smirien to rub with fat, anoint, Old English smirian, smerian, smerwan; cognate with Dutch smeren, German schmieren, Old Norse smyrja, smyrwa; (noun) in current senses derivative of the v.; compare obsolete smear fat, grease, ointment, Middle English smere, Old English smeoru, cognate with Dutch smear, German Schmer, Old Norse smjǫr grease, Greek smýris rubbing powder; see emery

Explanation

To smear something is to smudge or blur it. You might literally smear your pen-and-ink drawing, or figuratively have your reputation smeared by getting caught in a lie. You can also smear things physically by smoothing them onto another surface, like when you smear lip balm on your mouth or smear cream cheese on your bagel. When you smear a person, however, you cause them real harm by hurting their reputation badly. A politician might smear an opponent by falsely claiming they lied about where they went to college, for example. That kind of smear can be hard to erase.

Example Sentences

“But I think that’s a lie,” she says, briskly brushing off the stories as a smear campaign concocted by Otso’s enemies.

From The Wall Street Journal • Apr. 16, 2026

People offer prayers, smear bright colours on family and friends and eat traditional food and sweets to celebrate.

From BBC • Mar. 3, 2026

A block roasts into something different: the edges bronze and go a little chewy; the center caters into creamy pockets you can smear through the pasta later.

From Salon • Feb. 19, 2026

The Center for Responsible Lending says the industry is “using false allegations as part of a smear campaign to distract from the clear harm caused by their products.”

From MarketWatch • Feb. 12, 2026

In her mind’s eye, she could see in the distance, off toward the west, the grayish smear of cliffs cutting through the forest.

From Anya and the Dragon by Sofiya Pasternack

Related Words

• besmirch
• blur
• coat
• dab
• daub
• plaster
• smudge
• spatter
• spray
• sprinkle
• stain
• sully
• taint
• tar
• tarnish