Denshi Jisho — Online Japanese dictionary

正 せい 1: (logical) true; regular;
2: 10^40;
3: (Abbreviation) original;
4: (Mathematical term) positive; greater than zero
Common word, Noun, No-adjective 
正 まさ exact; precise
Noun, Na-adjective, Archaism 
正 しょう 1: greater (of equal court ranks); upper; senior;
2: director (highest of the four administrative positions of the ritsuryo period); chief;
3: (Prefix) (before a number) exactly; precisely
Noun, Noun prefix 
正 じょう greater (of equal court ranks); upper; senior
Noun, Noun prefix 
正規 せいき regular; normal; legal; formal; established; legitimate
Common word, Na-adjective, Noun, No-adjective 
正義 せいぎ justice; right; righteousness; correct meaning
Common word, Noun 
正座 せいざ kneeling with the tops of the feet flat on the floor, and sitting on the soles
Common word, Noun, Suru verb 
是正 ぜせい correction; revision
Common word, Noun, Suru verb 
正す ただす 1: to correct; to reform; to amend; to redress;
2: to adjust; to straighten;
3: to ascertain; to confirm; to verify; to make sure of;
4: to enquire of someone about something (inquire); to question
Common word, Godan verb with su ending, Transitive verb 
不正 ふせい injustice; unfairness; iniquity; impropriety; irregularity; dishonesty; illegality; fraud
Common word, Na-adjective, Noun 
補正 ほせい correction; revision; compensation (e.g. to a pendulum)
Common word, Noun, Suru verb 
正に まさに 1: (Usually written using kana alone) exactly; surely; certainly;
2: just (about to); on the verge (of doing or happening);
3: duly; naturally
Common word, Adverb 
賀正 がせい A Happy New Year!
Noun 
規正 きせい correction
Noun, Suru verb 
至正 しせい perfect correctness
Noun, Na-adjective 
正位 せいい correct location; correct position
Noun 
正意 せいい true heart; correct meaning
Noun 
正価 せいか net price; regular price
Noun 
正課 せいか regular curriculum; required subject
Noun 
正貨 せいか specie; metallic currency
Noun 
正気 せいき true character; true heart; true spirit
Noun 
正誤 せいご correction
Noun 
正坐 せいざ kneeling with the tops of the feet flat on the floor, and sitting on the soles
Noun, Suru verb 
正使 せいし senior envoy; chief delegate
Noun 
正史 せいし official history; authorized history
Noun 
正視 せいし looking straight ahead; viewing sincerely
Noun, Suru verb, No-adjective 
正字 せいじ 1: correct characters;
2: traditional characters
Noun 

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