Pob tudalen â rhagddodiad
- u-turn
- u-turns
- ubhal
- uccello
- uccidere
- uchaf
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- uchafswm
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- ultraviolet
- umbrella
- umut
- un
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- un deg pump
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- unan
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- uncertain
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- undecided
- undeniable
- underclothes
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- uniform
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- uomo
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