Opulence (دولت) means great 'wealth' (امیری) or luxuriousness. 'Squalor' (گندگی) is the antonym.

Opportune (بروقت) means done or occurring at a favorable or 'timely' (مناسب وقت پر) moment. 'Awkward' (عجیب) is an antonym.

Op Art (Optical Art) (آپٹیکل آرٹ) is a style of visual art that uses abstract patterns and colors to 'create optical illusions' (بصری دھوکہ پیدا کرنا).

Onerous (بھاری) describes a task or responsibility that is burdensome and difficult. 'Oppressive' (ظالمانہ) or 'burdensome' is the correct meaning.

Omnivorous (ہمہ خور) means feeding on both plants and animals. It implies 'devouring indiscriminately' (بلا امتیاز کھانا), or taking in all things. 'Meat-eating' (گوشت خور) is 'carnivorous'.

Omnipresent (ہر جگہ موجود) means 'present everywhere' (ہر جگہ حاضر) at the same time. 'Knowing everything' (سب کچھ جاننے والا) is 'omniscient'.

An ombudsman (محتسب) is an official appointed to investigate and act as a 'complaint receiver' (شکایت وصول کنندہ) for grievances against an organization or government.

To be offended (ناراض) means to feel resentful, annoyed, or 'made angry' (غصہ دلانا) by a remark or action.

Odious (مکروہ) means extremely unpleasant or repulsive. 'Hateful' (قابل نفرت) is a direct synonym. 'Charming' (دلکش) is an antonym.

To occlude (بند کرنا) means to stop, close up, or 'block' (رکاوٹ ڈالنا) an opening or passage.