inflection

noun

in·​flec·​tion in-ˈflek-shən 

1

: change in pitch or loudness of the voice

2

a

: the change of form that words undergo to mark such distinctions as those of case, gender, number, tense, person, mood, or voice

b

: a form, suffix, or element involved in such variation

c

: accidence

3

: the act or result of curving or bending : bend

4

a

: change in curvature of an arc or curve from concave to convex or conversely

b

: inflection point

Did you know?

Changing the pitch, tone, or loudness of our words are ways we communicate meaning in speech, though not on the printed page. A rising inflection at the end of a sentence generally indicates a question, and a falling inflection indicates a statement, for example. Another way of inflecting words is by adding endings: -s to make a noun plural, -ed to put a verb in the past tense, -er to form the comparative form of an adjective, and so on.

Synonyms

• curvature
• curve
• angle
• bend
• turn

Examples of inflection in a Sentence

She spoke with no inflection.

She read the lines with an upward inflection.

Most English adjectives do not require inflection.

“Gone” and “went” are inflections of the verb “go.”

English has fewer inflections than many other languages.

Recent Examples on the Web

After all, even though the category has seen strong investments over the last ten years, close to $.5T, AI innovation presents a major inflection that is having a ripple effect across most all sectors. —Dean Debiase, Forbes.com, 17 June 2025

Baranski reigns over every one of her scenes as Agnes, who wields her inflections as a master artist wields her brush. —Kristen Baldwin, EW.com, 12 June 2025

The shift is exponential, not iterative, and that’s the inflection most investors still miss. —Jim Osman, Forbes.com, 24 June 2025

America is in an interesting inflection period for this: If Trump succeeds in taking away the incentives for people to buy EVs, that could have a negative effect on the industry here in America. —Sean Collins, Vox, 21 Apr. 2025

Word History

First Known Use

1531, in the meaning defined at sense 3

Phrases Containing inflection

• inflection point
• point of inflection

Rhymes for inflection

• abjection
• advection
• affection
• bijection
• bisection
• collection
• complexion
• confection
• connection
• connexion
• convection
• correction

Kids Definition

inflection

noun

in·​flec·​tion in-ˈflek-shən 

1

: a change in the pitch or tone of a person's voice

2

: the change in the form of a word showing its case, gender, number, person, tense, mood, voice, or comparison

inflectional

-shnəl

-shən-ᵊl

adjective

Medical Definition

inflection

noun

in·​flec·​tion

variants or chiefly British inflexion

in-ˈflek-shən 

: the act or result of curving or bending