common

ルイ/RUI/RUI/ルイ/

accumulate;  involvement;  trouble;  tie up;  continually

Radical: (silk).   Strokes: 11画.   Elements: 糸幺小田.   Pinyin: lèi / léi / lěi.   Hangul:  [ru].

Jōyō Kanji High School.   JLPT N1.

Example compounds:
ルイRUIるいぞうruizō】successive or progressive increases; cumulative increase
るいしんruishin】successive promotion; gradual promotion; graduated
るいけいruikei】cumulative total; accumulated total; total up to now
Codepoints and classification codes:
7d2fUnicode
46-63JIS X 0208
2-5-6SKIP
5f6.5TKD
6090.3Four Corner
3641De Roo
Dictionary indices:
3006Classic Nelson
4469The New Nelson Character Dictionary by A. Nelson
2585New Japanese-English Character Dictionary by J. Halpern
1652Kanji Learner's Dictionary by J. Halpern
1364Remembering the Kanji by J. Heisig
1811A New Dictionary of Kanji Usage (Gakken)
2004Japanese Names by P.G. O'Neill
1284Essential Kanji by P.G. O'Neill
27343Daikanwajiten 「大漢和辞典」 by T. Morohashi vol. 8 p. 1008
1917A Guide to Remembering Japanese Characters by K.G. Henshall
1060Kanji & Kana by Spahn and Hadamitzky
1627Kanji Flashcards by M. Hodges and T. Okazaki
1475Tuttle Kanji Cards by A. Kask
1302Kanji in Context by Nishiguchi and Kono
1508Kodansha Compact Kanji Guide
1376Y. Maniette's French adaptation of Heisig