It depends on the context. In ancient Rome, the pronunciation would have been, roughly, WAH-lay (but with no diphthong in the second syllable). In the pronunciation of the Catholic Church, it is VAH-lay.
salve=hello vale=goodbye
Welcome---ave/avete Farewell---vale/valete
Vaal-ay do ree-o dos-e
The Latin equivalent of 'when goodbye means forever' is Quando 'vale' significat 'semper'. In the word-by-word translation, the dependent conjunction 'quando' means 'when'. The verb 'vale' means 'farewell, goodbye'. The verb 'significat' means '[he/she/it] does mean, is meaning, means'. The adverb 'semper' means 'always, forever'.
It's a latin formula to say "goodbay", as "vale"
"everto absum" is how you would say "be gone" in Latin.
summer-vale
You would say milly- tes to pronounce milites.
You would pronounce it 'Sis-er-oh'
Vale
Vale - it is Latin for farewell.
Vale/valete.
The derivatives of the Latin word "vale" include "valeo" meaning "to be strong" or "to be well" and "valediction" meaning "a farewell."
Vale do Lobo Vale as in 'Val' Kilmer do as in 'do' (verb) Lobo as in as in 'lobe', BUT pronouncing an almost mute 'o' in the end.
salve=hello vale=goodbye
Welcome---ave/avete Farewell---vale/valete
You would pronounce Centurion as Kent-urion. Due to the fact that Latin has no soft C so all C's come out as K's.