inflexion in a sentence

Definition

Inflexion refers to a change in the tone or pitch of the voice, or a point in a curve where the direction of concavity changes.

The inflexion in her voice suggested that she was no longer convinced by his arguments.
In mathematics, inflexion points mark where a curve changes its direction of concavity.
His poetry often features a subtle inflexion that captures the complexity of human emotions.
The inflexion of the word can change its meaning entirely in certain languages.
As the conversation progressed, the inflexion of her tone revealed her growing irritation.