12 strokes
                                                    
                        Jouyou kanji
            Taught in 11th grade
    
                                                    JLPT exam level N1
                                            boil, ferment, seethe, uproar, breed
Kun'yomi
- わ - く - to well (up) ②to appear (esp. suddenly) (sweat, tears, etc.) ③to feel emotions (e.g. joy, bravery, etc.) ④to hatch 
On'yomi
- ユウ 
- ヨウ 
- ユ 
Nanori
- わき 
- わく 
Character Breakdown
Common Words
                                    to well (up) ②to appear (esp. suddenly) (sweat, tears, etc.) ③to feel emotions (e.g. joy, bravery, etc.) ④to hatch
                                
                            
                                    welling (up) ②appearing (esp. suddenly) ③frothing of water (due to an advancing school of fish)
                                
                            References
| Unicode hex code | 6E67 | 
| JIS X 0208 | 1-45-15 | 
| Nelson, A. Classic Nelson | 2607 | 
| Haig, J. New Nelson Japanese-English Character Dictionary | 3207 | 
| Halpern, J. New Japanese-English Character Dictionary | 615 | 
| Halpern, J. Kodansha Kanji Dictionary | 749 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha) | 448 | 
| Halpern, J. Kanji Learners Dictionary (Kodansha), 2nd edition (2013) | 563 | 
| Heisig, J. Remembering The Kanji | 2284 | 
| Heisig, J. Remembering The Kanji, Sixth Ed. | 1510 | 
| O'Neill, P.G. Japanese Names | 1573 | 
| Morohashi Daikanwajiten | 17862X | 
| Spahn and Hadamitzky Kanji and Kana | 2144 | 
| Spahn and Hadamitzky Kanji and Kana (2011 edition) | 1475 | 
| Tuttle Dictionary Descriptor Code | 3a9.31 | 
| Four corner code | 3712.7 |