What does the word specific epithet mean?

Question

Is the species for Rosa indica and Mangifera indica 'indica' as you can see is the same in both. What does this signify. It is obvious that it has different species as they have different genus.

Answer 1

Specific epithet is a plant's species name.

An example is Japanese Boxwood the genus is Buxus and the specific epithet is microphylla.