friction

noun

fric·​tion ˈfrik-shən 

1

a

: the rubbing of one body against another

the friction of sandpaper on wood

b

: the force that resists relative motion between two bodies in contact

oil in a car engine reduces friction

2

: the clashing between two persons or parties of opposed views : disagreement

friction between neighbors

friction between state and federal authorities

3

: sound produced by the movement of air through a narrow constriction in the mouth or glottis

frictionless

ˈfrik-shən-ləs 

adjective

frictionlessly adverb

Synonyms

• conflict
• disaccord
• discord
• discordance
• discordancy
• disharmony
• dissension
• dissention
• dissent
• dissidence
• dissonance
• disunion
• disunity
• division
• infighting
• inharmony
• schism
• strife
• variance
• war
• warfare

Examples of friction in a Sentence

the friction of sandpaper on wood

Oil in a car engine reduces friction.

It was difficult to reach an agreement because of the friction between the two sides.

Recent Examples on the Web

Payers are focused on reducing costs to boost profitability, often leading to friction with healthcare providers who face increasing administrative burdens and diminishing financial returns. —Kyle J. Russell, USA TODAY, 18 Dec. 2024

From a shortage of teachers to a surplus Under the Pay Equity Fund, only teachers — not center directors or other administrators — get pay bumps, a point of friction for some. —Andrea Hsu, NPR, 13 Dec. 2024

The integration eliminates the friction of navigating between apps, automatically turning TikTok’s engaging content into sales. —Jamie Gutfreund, Forbes, 12 Dec. 2024

Language that would repeal or delay the Biden administration's nursing home staffing rule has also been dropped, according to a source familiar with the talks, removing a major source of friction. —Peter Sullivan, Axios, 12 Dec. 2024

Word History

Etymology

earlier, therapeutic rubbing of the limbs, from Middle French, from Latin friction-, frictio, from fricare to rub; akin to Latin friare to crumble, and perhaps to Sanskrit bhrīṇanti they injure

First Known Use

1704, in the meaning defined at sense 1a

Phrases Containing friction

• friction clutch
• friction drive
• friction tape

Kids Definition

friction

noun

fric·​tion ˈfrik-shən 

1

a

: the rubbing of one thing against another

b

: the force that resists motion between bodies in contact

the friction of a box sliding along the floor

lubrication reduces friction

2

: disagreement between persons or groups

3

: sound produced by the movement of air through a narrow constriction in the mouth or glottis

frictional

-shnəl

-shən-ᵊl

adjective

frictionally

-ē

adverb

frictionless

-ləs 

adjective

Etymology

Middle English friction "a rubbing of two things together, friction," from early French friction or Latin friction-, frictio (both same meaning), derived from Latin fricare "to rub" — related to fray entry 2