white tie

US /waɪt taɪ/
UK /waɪt taɪ/
"white tie" picture
1.

white tie, frac

a formal dress code for men, consisting of a black tailcoat, white dress shirt, white bow tie, and white waistcoat

:
The invitation specified white tie attire for the gala.
L'invito specificava l'abbigliamento white tie per il gala.
Only a few events still require white tie.
Solo pochi eventi richiedono ancora il white tie.