The Sounds of English
A Basic Course

Rising diphthongs

Rising diphthongs glide from a more open to a less open tongue position. Rising dipthongs may be defined as fully back or fully front, or they may glide from a back to a front position. The lip position or movement is related to the position of corresponding vowel phonemes. A back rising diphthong will therefore have lip rounding, whereas a front rising diphthong will have spread lips. SBE has five rising diphthong phonemes. To refer to the dipthong charts, click here


as in
From the position of front half-open /e/ the tongue rises in the direction of a central /i/. Lip spreading increases during pronunciation. Fortis/lenis contrast considerable.

as in
From an open centralized /a/ the tongue moves up towards the position of /i/. Lip position changes from neutral to spread during pronunciation. Fortis/lenis contrast is considerable.

as in
From the position of a rounded half-open back vowel, the front of the tongue rises in the direction of /i/ while the open lip position changes into spread. Fortis/lenis contrast considerable.

as in
From an open centralized to back vowel /a/ the tongue moves up in the direction of /u/. Lip position changes from neutral to rounded. Fortis/lenis contrast considerable.

as in
From a central position the tongue moves towards the position of /u/. The lip position changes from neutral to loosely rounded. Fortis/lenis contrast is considerable.