What does inflection mean?
Inflection is the grammatical alteration of a word to mark distinctions such as number, person, tense, case, mood, aspect, comparison, and degree. The term names both the process and an individual inflected form. In “walk” versus “walks,” for example, the ending -s marks plural agreement, while an irregular verb may change more substantially. Inflection is especially useful in grammar, linguistics, mathematics, and music, where it can also refer to a change in a curve, sound, or vocal pitch. Its meaning is technical rather than usually emotional or decorative, though ordinary speakers may use “inflection of the voice” for a subtle shift in tone. The word is related to the Latin verb inflectere, “to bend,” which captures the underlying idea of a form bending or turning toward grammatical meaning. Knowing inflection helps explain why related words vary in form rather than vocabulary.
nounInflection is the alteration of a word's form to express grammatical distinctions, such as number, tense, case, person, mood, aspect, or comparison. It may also refer more broadly to a change in curvature, pitch, tone, or direction.
- The alteration of a word's form to express grammatical distinctions.
- A particular inflected form of a word.
- A change in the pitch or tone of the voice.
- A change in direction or curvature, especially at a point of inflection.
"The final -s is an inflection marking plural number in the noun."
"The inflection of the verb changes according to tense and the grammatical person of the subject."
"Her careful inflection of the voice conveyed uncertainty without changing the words themselves."
Usually countable when referring to particular grammatical forms, as in noun and verb inflections; the uncountable use can refer to inflection as a general process.
"The teacher asked students to identify the irregular inflections of the verb."
Inflection is grammar's bend: the Latin root meant “to bend,” and the word still evokes a form turning to convey meaning.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does inflection come from?
Inflection entered English from Latin, where inflectere meant “to bend” or “turn aside,” formed from in- and flectere, “to bend.” Its noun inflection developed from the corresponding Latin formation and was used for the bending of forms and, later, grammatical modification. Related English words include inflect and inflexible, while inflexion survives as a variant spelling of inflection.
Related word forms
How inflection is actually used
The grammatical sense is standard in formal writing about language and linguistics. In music, mathematics, and descriptions of speech, inflection may also denote a change in pitch, contour, or curvature; uses concerning vocal delivery can occur in ordinary speech.
Easily confused with inflection
Inflexion is a variant spelling of inflection and is not a separate grammatical process.
Inflection is the alteration of a word's form, whereas reflection in language refers more broadly to an expression or the act of reflecting.