Graphemes for Back + Front Diphthongs

Falling

/ui/ - close back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
dv-Thaa	<◌ުއ◌ި>	މާމުއި
es-Latn	<uy>	muy ‘very’, cuy ‘guinea pig’	/ui/ is a rare diphthong
ne-Deva	<उई>	दुई ‘two’	/ui/ can be represented by ‹उई›, ‹उी›, ‹ˌुˌी›, or ‹ˌुई›.
wo-Arab	<◌ُي>	دُيْ ‘to draw water, to fill with water’
wo-Latn	<uy>	duy ‘to draw water, to fill with water’

/uːi/ - lengthened close back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
wo-Arab	<◌ُوي>	فُويْ ‘to be proud’
wo-Latn	<uuy>	fuuy ‘to be proud’

/oi/ - close-mid back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
ast-Latn	<oi>	doi ‘I give’
de-Latn	<eu>	euch ‘to you’
de-Latn	<äu>	Bräutigam ‘bridegroom’
dv-Thaa	<◌ޮއ◌ި>	ސޮއި
en-Latn	<oi>	point
en-Latn	<oy>	joy
es-Latn	<oi>	oigo ‘I hear’
es-Latn	<oy>	soy ‘I am’, estoy ‘I am’	‹oy› is used word-finally
id-Latn	<oi>	bolpoin ‘ballpoint’	Doubtful
ne-Deva	<ओइ>	होइन ‘no’	/oi/ can be represented by ‹ओई›, ‹ओी›, ‹ˌोˌी›, or ‹ˌोई›.

/oːi/ - lengthened close-mid back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
wo-Arab	<◌ٗوي>	تٗويْ ‘to be clumsy, dull’
wo-Latn	<óoy>	tóoy ‘to be clumsy, dull’

/ʌi/ - open-mid back unrounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
ne-Deva	<ऐ>	ऐना ‘mirror’
ne-Deva	<◌ै>	कैले ‘when’

/ɔi/ - open-mid back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
wo-Arab	<◌ࣷي>	دࣷيْ ‘to be enough’
wo-Latn	<oy>	doy ‘to be enough’

/ɔːi/ - lengthened open-mid back rounded + close front unrounded diphthong

Writing System	Grapheme	Example	Notes
wo-Arab	<◌ࣷوي>	نࣷويْ ‘to be soft’
wo-Latn	<ooy>	nooy ‘to be soft’

Rising

/wi/ - close back rounded + close front unrounded rising diphthong

Writing System	Grapheme	Example	Notes
ast-Latn	<ui>	cuidáu ‘care’
es-Latn	<ui>	cuidado ‘care’, ruido ‘noise’

/we/ - close back rounded + close-mid front unrounded rising diphthong

Writing System	Grapheme	Example	Notes
ast-Latn	<ue>	tueru ‘trunk’
es-Latn	<ue>	bueno ‘good’, puerta ‘door’