Completely
exactly
right
Structure
- 真(っ) + いAdj[stem] or Noun
Prefix used to emphasize notable level of something. Literally “real/genuine/true”.
If 真 precedes word starting with a ま/な groups syllable(ま group: ま、み、む、め、もetc) it becomes 真ん: 真ん中、真ん前、真ん丸/真ん円.
If it precedes words starting with か/さ/しゃ groups syllable, it becomes: 真っ: 真っ黄(まっき in 真っ黄色),真っ白、真っ先, 真っ正直.
If it precedes words starting with は group syllable it becomes 真っ and syllable becomes ぱ group syllable: 真っ平,真っ裸
Exceptions: 青(あおい) - まっ青(さお)、赤(あかい)- まっ赤(か)