in English is:

countability

Mutations

Soft:rifadwyedd
Nasal:(no mutation)
Aspirate:(no mutation)

Use

y rhifadwyedd hwn
fy rhifadwyedd i
dy rifadwyedd di
ei rifadwyedd ef/o
ei rhifadwyedd hi
ein rhifadwyedd ni
eich rhifadwyedd chi
eu rhifadwyedd nhw/hwy
External

Dictionary Portal

This is a library of dictionaries and other online resources where you can search further for rhifadwyedd*:

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.