Illiam eng yaxshi nom ma'nolari: Jiddiy, Diqqat bilan, Faol, Saxiy, Ijodiy. Qabul qiling Illiam ismining ma'nosi.
Downey eng yaxshi familiyasi ma'nolari: Do'st, Jiddiy, Diqqat bilan, Uchuvchi, Ijodiy. Qabul qiling Familiyasi Downey.
Illiam ismining kelib chiqishi. Manx form of William. Qabul qiling Illiam ismining kelib chiqishi.
Boshqa mamlakatlar va tillarda, Illiam uchun alohida ismlar: Bill, Billie, Billy, Guglielmo, Guilherme, Guillaume, Guillem, Guillermo, Gwil, Gwilherm, Gwilim, Gwillym, Gwilym, Jami, Jelle, Liam, Pim, Uilleag, Uilleam, Uilliam, Ulick, Vilĉjo, Vilém, Vilhelm, Vilhelmas, Vilhelmi, Vilhelmo, Vilhelms, Vilhjálmur, Vilho, Vili, Viliam, Vilim, Vilis, Viljami, Viljem, Viljo, Vilko, Ville, Villem, Vilmos, Wil, Wilhelm, Wilhelmus, Wilkin, Wilky, Will, Willahelm, Willem, Willi, William, Willie, Willy, Wilmot, Wim, Wiremu, Wöllem, Wullem, Wum. Qabul qiling Illiam boshqa tillarda.
Downey ismiga ega bo'lgan eng keng tarqalgan ismlar: Jessie, Mary, Kamisha, Lonnie, William. Qabul qiling Downey bilan ketadigan ismlar.
Illiam va Downey ning mosligi 77%. Qabul qiling Illiam va Downey muvofiqligi.