Meaning
both ... and ..
- both ... and ...
In a sentence
Mi piacciono sia il caffè sia il tè.
I like both coffee and tea.
Vieni sia sabato sia domenica?
Are you coming both Saturday and Sunday?
Il corso è aperto sia ai principianti sia agli esperti.
The course is open to both beginners and experts.
Usage notes
- Use 'sia... sia...' for 'both... and...'; 'o... o...' is for 'either... or...'. Don't mix them.
- Always pair 'sia' with another 'sia'—never use it alone or with 'o'.
- Common in formal writing; less so in casual speech. 'E... e...' is more informal for 'both... and...'.