noun
also Brit inflexion , pl -tions
a rise or fall in the sound of a person's voice :a change in the pitch or tone of a person's voice [noncount]
grammar
[noncount] :a change in the form of a word that occurs when it has a particular use
[count] :a form of a word that occurs when it has a particular use :an inflected form
[count] :a part of a word (such as a suffix) that is used to change a word's form for a particular use