common

レン/REN/    ね.る/ne.ru/REN/レン/    ne.ru/ね.る/

tempering;  refine;  drill;  train;  polish

Radical: (metal).   Strokes: 16画.   Elements: |一金日木田并ハ.   Pinyin: liàn.   Hangul:  [ryeon].

Jōyō Kanji High School.   JLPT N1.

Example compounds:
レンREN百戦ひゃくせんれんまhyakusenrenma】veteran; (someone) schooled by adversity in many battles; (someone) rich in life's experience gained through much adversity
しゅうれんshūren】training; drill; practice; practise; discipline
たんれんtanren】tempering; forging; hardening; disciplining; training
Codepoints and classification codes:
932cUnicode
47-3JIS X 0208
1-8-8SKIP
8a8.3TKD
8519.6Four Corner
2864De Roo
Dictionary indices:
4881Classic Nelson
6300The New Nelson Character Dictionary by A. Nelson
1741New Japanese-English Character Dictionary by J. Halpern
1146Kanji Learner's Dictionary by J. Halpern
2030Remembering the Kanji by J. Heisig
1847A New Dictionary of Kanji Usage (Gakken)
1872Essential Kanji by P.G. O'Neill
40576Daikanwajiten 「大漢和辞典」 by T. Morohashi vol. 11 p. 587
1933A Guide to Remembering Japanese Characters by K.G. Henshall
1816Kanji & Kana by Spahn and Hadamitzky
1853Kanji Flashcards by M. Hodges and T. Okazaki
1861Tuttle Kanji Cards by A. Kask
1602Kanji in Context by Nishiguchi and Kono
1829Kodansha Compact Kanji Guide
2049Y. Maniette's French adaptation of Heisig