lettergroup

noun
UK /ˈlɛtə ɡruːp/
US /ˈlɛtər ɡruːp/

A lettergroup is a small set of letters that go together.

The teacher asked us to find the lettergroup 'ch' in the word 'chair'.


OTHER MEANINGS

2. A group of people who write letters to each other.

The pen-pal lettergroup meets every month to share their mail.

3. A category of letters, such as vowels or consonants.

In phonics class, we sorted the letters into a vowel lettergroup and a consonant lettergroup.

4. A block of letters used as a code or label.

Each box was marked with a lettergroup like 'AB' or 'CD'.