opalescent – Ilocano, adjective agduduma a maris
opaque
opaque – Ilocano, adjective agsalagasag
open
open – Ilocano adjective silulukat verb ilukat
opening
opening – Ilocano, noun panaglukat
operate
operate – Ilocano, verb mangpapagna mangaramat
operation
operation – Ilocano, noun operasyon panangituray panangpatignay
operator
operator – Ilocano, noun mangtarawidwid
opinion
opinion – Ilocano, noun kapanunutan panunot
opponent
opponent – Ilocano, noun kalaban kabusor
opportune
opportune – Ilocano, adjective maiyannogot a kanito