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

(p. 189) ōlana1 a coming down, descent. 43)

(p. 189) ōṭhā to rise; to get up; to climb or ascend (গাছে ওঠা, পাহাড়ে ওঠা); to get in (গাড়িতে ওঠা). See also the older form উঠা । 9)

(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) ōraphē called otherwise, alias. 37)

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

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

(p. 188) ōkālati the profession of a pleader, legal profession or practice, pleadership; pleading, advocacy, defence.  a. pertaining to pleaders or pleadership or pleading. ওকালতি করা v. to practise as a pleader; to plead for. 12)

(p. 188) ōkaḍ়ā a variety of herb or its fruit or leaf (when this is rubbed on the skin one gets a terrible itching sensation). 9)

(p. 188) ō kē who is he or she. 15)

(p. 189) ōlandāja Dutch. a. a Hollander, a Dutch; the Dutch language. 45)

(p. 188) ōjasbala vigorous, full of strength. 24)

(p. 188) ōkāra the post-consonantal symbol 'ো' affixed to a consonant whilst adding the ও--sound to it. ওকারাদি a. (of words) beginning with ও or ও--sound. ওকারান্ত a. (of words) ending in ও or ও--sound. 10)

(p. 189) ōdana food; meal; rice; boiled rice. 20)