籠
ロウ, ル, かご, こ.める, こも.る, こ.む, ごめ, もり
basket, devote oneself, seclude oneself, cage, coop, implied
JLPT0 G7 S22 F5000
As per 龍# (winding) + 竹 bamboo → *basket* woven of curved bamboo strips → *contain*; *include*; *encompass*. Also, *unite*, *shut oneself up* and *cage*. For cage, compare 槞. A variant form, 篭, employs the 竜 form of 龍.
[Full Kanji Etymology List]