(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) ōṣadhiśālā herbarium. 54)

(p. 189) ōṣadhi, ōṣadhī a plant that dies after bearing fruit but for once. 52)

(p. 189) ōlāibibi the name given by the Muslims to ওলাইচণ্ডী । 48)

(p. 188) ōcalānō to winnow, to fan (grain etc.) free of husks and chaff. 20)

(p. 189) ōjōguṇa (rhet.) ornateness and vigour of style. 2)

(p. 188) ōn̐cā, ōn̐chā (chiefly coll.) worthless or bad; inferior; contemptible; base, mean; good-for-nothing. 7)

(p. 189) ōṭakiśati, ōṭakisti (in chess) a position in which if a particular piece or chessman is moved, the player in question gets a check, and if not moved, that piece or chessman is taken by the adversary. 6)

(p. 188) ōki, ōkī expressing: inquisitiveness, amazement, fright etc., what's that. 13)

(p. 189) ōstāgara a very efficient or chief artisan or tailor, a master artisan or tailor. 58)

(p. 189) ōẏāstā act of attaching importance; serious attention, heed, care; dependence; sake (কীসের ওয়াস্তে). ওয়াস্তা করা, ওয়াস্তা রাখা v. to care (for), to heed, to pay attention (to); to attach importance (to); to depend (upon). 33)

(p. 188) ōn̐calā skin of fruits and vegetables; refuse. ̃কুড় n. a dustbin, place where garbage is deposited. Same as আঁস্তাকুড় । 6)

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

(p. 189) ōṭakānō, uṭakānō search clumsily and hastily; look for something hurriedly; rummage. 5)

(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)