Terminology: Ligatures

When two or more letters are combined into one character, it is called a ligature. In typography some ligatures represent specific sounds or words such as the AE or æ diphthong ligature. In handwriting and typography, a ligature occurs where two or more graphemes are joined as a single glyph. Sadly not all fonts include ligatures.

SymbolSymbol nameSymbol design description

Ææ

Ae (Aesc)This diphthong (two vowels) is the ligature for the letters “ae”, traditionally used in words like Cæsar, luekæmia, pædiatric, anæsthesia and encyclopædia

Œœ

OeThis diphthong (two vowels) is the ligature for the letters “oe”, traditionally used in words like fœtus, diarrhœa and œstrogen

ß

Sz (German)Not to be confused with Greek Beta

Þþ

Thorn or Th
(Traditional English)
A capital letter “P” and a lowercase letter “p” with a raised upright

Ðð

Eth
(Traditional English)
A capital letter “D” with a horizontal line through the upright and a lowercase reverse-italic “d” with a line across the upright

st 

ft 

ff 

fi 

fl 

ffi 

ffl 

Ŋŋ

EngUppercase and lowercase