which of these languages is more similar?

[spanish catalan]

russian and ukrainian or portuguese and spanish?

[mikhail]

There's a difference between Russian and Ukrainian?

Well, Portuguese and Spanish are different languages, Ukrainian is an accented dialect of Russian with a couple different words and some changed-around letters.

[Infinite]

There's a difference between Russian and Ukrainian?

+++

[Veneda]

Russian and Ukrainian is similiar in 86%. As for Portuguese and Spanish I have no idea.

[spanish catalan]

There's a difference between Russian and Ukrainian?

Well, Portuguese and Spanish are different languages, Ukrainian is an accented dialect of Russian with a couple different words and some changed-around letters.

sorry,but i'm not familiar with slavic languages

[Davush]

Can a Russian understand spoken Ukranian and vice versa without too much difficulty? If so, then Russian and Ukranian are probably similar. Spaniards have a hard time understanding Portugal-Portuguese when spoken fast. Portuguese seem to understand Spanish better if it's not too accented.