Denshi Jisho — Online Japanese dictionary

恐らく おそらく perhaps; likely; probably; I dare say
Common word, Adverb 
恐れる おそれる to fear; to be afraid of
Common word, Ichidan verb, Transitive verb 
教わる おそわる to be taught
Common word, Godan verb with ru ending, Transitive verb 
煽てる おだてる 1: to flatter; to soft-soap;
2: to instigate; to stir up
Common word, Ichidan verb, Transitive verb 
穏やか おだやか calm; gentle; quiet
Common word, Na-adjective, Noun 
一昨日 おととい day before yesterday
Common word, Adverbial noun, Temporal noun 
一昨年 おととし year before last
Common word, Adverbial noun, Temporal noun 
脅かす おどかす 1: to threaten; to menace;
2: to startle; to surprise
Common word, Godan verb with su ending, Transitive verb 
踊り子 おどりこ dancer (usu. female)
Common word, Noun 
踊り場 おどりば 1: dance hall; dance floor;
2: landing (stairs);
3: leveling off (e.g. in the economy); period of stagnation; cooling-off period; lull; plateau
Common word, Noun 
同じく おなじく similarly; same (idea); same (name)
Common word, Adverb, Conjunction, Suru verb 
お握り おにぎり rice ball (often triangular, sometimes with a filling and wrapped in nori)
Common word, Noun, Usually written using kana alone 
お早う おはよう Good morning
Common word, Interjection, Usually written using kana alone, Abbreviation 
覚える おぼえる 1: to memorize; to memorise; to commit to memory; to learn by heart; to bear in mind; to remember;
2: to learn; to pick up; to acquire;
3: to feel;
4: to think; to regard
Common word, Ichidan verb, Transitive verb 
溺れる おぼれる 1: (Usually written using kana alone) to drown; to nearly drown; to sink below the surface (of water);
2: to indulge in; to lose one's head over something; to wallow in
Common word, Ichidan verb, Intransitive verb 
お参り おまいり worship; shrine visit
Common word, Noun, Suru verb 
お守り おまもり charm; amulet
Common word, Noun 
お神輿 おみこし 1: (Polite language) portable shrine (carried in festivals);
2: (Usually written using kana alone) buttocks; lower back; waist; hips
Common word, Noun 
お土産 おみやげ present; souvenir
Common word, Noun, Polite language 
思い出 おもいで memories; recollections; reminiscence
Common word, Noun 
重たい おもたい heavy; massive; serious; important; severe; oppressed
Common word, Adjective 
面持ち おももち expression; look; countenance; face
Common word, Noun 
思わく おもわく 1: expectation; prediction; forecast;
2: anticipation; speculation
Common word, Noun, No-adjective 
思わず おもわず unintentionally; reflexively; spontaneously; involuntarily; instinctively
Common word, Adverb 
お休み おやすみ 1:
2: (Polite language) holiday; day off; absence;
3: (Honorific or respectful language) sleep; rest; (Expression) (Abbreviation) Good night
Common word, Noun 
及ぼす およぼす to exert; to cause; to exercise
Common word, Godan verb with su ending, Transitive verb 

Found 7301 words. Page one, two, three, four, five, six, seven, eight, nine, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99

You can also

Look up kanji details for 小 お.

Try a Yahoo Jisho search for 小 お .
Try a Goo Jisho search for 小 お .
Try a Google search for 小 お .