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

(p. 189) ōdhāra that side or extremity or region. 21)

(p. 189) ōḍ়ba an Indian musical mode which is expressed by five principal notes. 13)

(p. 188) ō1 the tenth vowel of the Bengali alphabet. 2)

(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) ōṭā (coll. & dero.) that, it, he, she. 7)

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

(p. 188) ō2 that or yonder person or creature or thing, a person or creature or thing in question, he, she, it.  a. that immediately preceding, last (ও মাসে). adv. too, also, moreover (সে খাবেও); even (নামও শুনিনি).  con. and.  int. expressing; a call, recollection, amazement, pity etc.; holla, ho; ah, oh. 3)

(p. 189) ōẏādā a point of time by or within which something is promised to be paid or given or done; promise. ওয়াদা দেওয়া v. to set a time-limit. 28)

(p. 188) ōkē to him, him. 14)

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

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

(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. 189) ōẏākapha charitable grant for Muslim religious purpose or in service of God. ̃নামা n. a grant providing for this gift. ওয়াকিফ, ওয়াকিব a. conversant, familiar, acquainted, knowing; informed; experienced. ওয়াকিফহাল, ওয়াকিবহাল a. conversant with the situation; well-informed of the situation. 26)

(p. 189) -ōẏālā2 denoting: a trader, a seller, a practitioner, an owner, one in possession of or endowed with etc., -er, -or,ist. fem. ওয়ালি, উলি । 32)