digraph
/ˈdɪɡræf/Definitions
1. noun
A pair of letters that together represent a single sound, especially in a language such as Welsh or Gaelic.
“The digraph ‘ch’ is a common combination in many languages.”
2. noun
A graph that shows the relationships between two sets of objects, especially in linguistics or computer science.
“The digraph was used to visualize the syntax of a programming language.”
3. verb
To write or print something using a digraph, especially for the purpose of demonstrating a linguistic point.
“The teacher asked the students to digraph the word ‘ch’ on the blackboard.”