(p. 189) ōhō expressing: recollection, amazement, regret etc., ah.

(p. 188) ōi that; yonder.  adv. there.  int. expressing mild regret for negligence, lapse of memory etc.; ah, ah me (ওই যা). 4)

(p. 189) ōta lying in wait to attack by surprise, an ambush, an ambuscade. ওত পাতা, ওত পেতে থাকা v. to lie in wait, to ambush, to ambuscade. 18)

(p. 189) ōlana2 a plumb-line, a plummet (also ওলনদড়ি). a. vertical. 44)

(p. 188) ōgarā a variety of food cooked by boiling rice and pulse together, hotchpotch. 18)

(p. 189) ōḍikōlana eau-de-cologne, a perfume made from water and alcohol. 10)

(p. 189) ōpha expressing amazement, anger, regret, pain, disgust etc.; oh. 23)

(p. 189) ōlāōṭhā cholera. 49)

(p. 189) ōstāda a trainer, a music-master or music-teacher; a master artist or artisan. a. skilled, expert. ওস্তাদি n. efficiency, skill, mastery; cleverness; an attempt to parade one's skill or mastery, bravado; uncalled-for act of coming forward to help; officiousness. a. pertaining to a trainer or music-master or master artist or master artisan. ওস্তাদি করা v. to try to parade one's skill or mastery; to come forward uncalled-for to help; to be officious. 59)

(p. 188) ōjasbī strong; vigorous; (rhet.) ornate and vigorous. fem. ওজস্বিনী । ওজস্বিতা n. strength; vigour; (rhet.) ornateness and vigour of style.

(p. 189) ōẏāhābi a follower of Abdul Wahab; a Muslim religious reformer; a group of Muslim socio-religious reformers. 34)

(p. 189) ōrē coll. & poet. form of ওকে । int. used in addressing or apostrophizing. 40)

(p. 189) ōrasā wet, moist. 38)

(p. 189) ōẏāpasa act of giving back, return. ওয়াপস করা v. to give back, to return. 29)

(p. 189) ōjhā a quack professing to have (supernatural) power of curing snakebites and other morbidities; an exorcist. 4)