smear

1 of 2

noun

ˈsmir 

1

a

: a viscous or sticky substance

b

: a spot made by or as if by an unctuous or adhesive substance

2

: material smeared on a surface (as of a microscopic slide)

also : a preparation made by smearing material on a surface

a vaginal smear

3

: a usually unsubstantiated charge or accusation against a person or organization

—often used attributively

a smear campaign

a smear job

smear

2 of 2

verb

smeared; smearing; smears

transitive verb

1

a

: to overspread with something unctuous, viscous, or adhesive : daub

smeared the paper with glue

b

: to spread over a surface

2

a

: to stain, smudge, or dirty by or as if by smearing

b

: sully, besmirch

specifically : to vilify especially by secretly and maliciously spreading grave charges and imputations

3

: to obliterate, obscure, blur, blend, wipe out, or defeat by or as if by smearing

smearer noun

Synonyms of smear

Verb

• paint
• coat
• daub
• stain
• anoint
• plaster
• besmear

Examples of smear in a Sentence

Noun

The blood smear revealed malaria.

Verb

The children smeared the window with fingerprints.

She smeared jam on her toast.

Butter was smeared all over the counter.

Her mascara smeared when she cried.

Recent Examples on the Web

Noun

Israel has alleged a global smear campaign. —Stoyan Nenov, USA Today, 17 May 2026

Next door, authorities found blood smears that appeared to be from Kay's house. —Christopher Rudolph, PEOPLE, 16 May 2026

Verb

The dog couldn’t go in her room so soon after her transplant, so Aspen dabbed colors on a small canvas and handed it to Scott, who put it in a plastic bag and smeared peanut butter on top. —Laura Ungar, Fortune, 23 May 2026

Oscar Wilde, for example, reposes beneath a hulking deity whose iconoclastic castration, back in 1961, did little to restrain pilgrims seeking to smear red lips across his stony physique. —Emily Cox, ARTnews.com, 22 May 2026

Word History

Etymology

Noun

Middle English smere, from Old English smeoru; akin to Old High German smero grease and probably to Old Irish smiur marrow

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Verb

before the 12th century, in the meaning defined at sense 1a

Phrases Containing smear

• cervical smear
• Papanicolaou smear
• Pap smear
• smear test

Rhymes for smear

• beer
• bier
• cheer
• clear
• dear
• deer
• drear
• ear
• fear
• fier
• gear
• hear

Kids Definition

smear

1 of 2 noun

ˈsmi(ə)r 

1

: a spot made by or as if by an oily or sticky substance : smudge

2

: material smeared on a surface

especially : material prepared for microscopic examination by smearing on a slide compare pap smear

3

: a usually unproven charge or accusation

smear

2 of 2 verb

1

a

: to spread with something oily or sticky

b

: to spread over a surface

2

a

: to stain, smudge, or dirty by or as if by smearing

b

: to harm the reputation of

3

: to blot out or blur by or as if by smearing

smearer noun

Medical Definition

smear

1 of 2 noun

ˈsmi(ə)r 

: material spread on a surface (as of a microscopic slide)

also : a preparation made by spreading material on a surface see pap smear, vaginal smear

smear

2 of 2 transitive verb

: to prepare as a smear for microscopic examination : make a smear of