リュウ  
なが.れる なが.れ なが.す -なが.す 
() current () flow () forfeit
                             
りゅう (n,n-suf) style of, method of, manner of, school (of thought)
ながし (n) (1) sink, (adj-no) (2) cruising (e.g. taxi)
ながす (v5s,vt) (1) to drain, to pour, to spill, to shed (blood, tears), (2) to wash away, (3) to distribute (e.g. electricity over wires, music over a PA system, etc.), to circulate, to broadcast, to beam, (4) to cruise (e.g. taxi), (5) to float, to set adrift, (6) to call off (a meeting, etc.)
ながれ (n) stream, current, flow
ながれる (v1,vi) to stream, to flow (liquid, time, etc.), to run (ink), to be washed away
ながれこむ (v5m,vi) to flow into, to pour into, to stream into
ながれぼし (n) shooting star, meteor
りゅういき (n) (river) basin
りゅうけつ (n,adj-no) bloodshed
はやり (n,vs,adj-no) fashion, fad, vogue, craze
りゅうこう (n,vs,adj-no) fashion, fad, vogue, craze
はやる (v5r,vi) (1) to be popular, to come into fashion, (2) to be prevalent, to spread widely (e.g. disease), to be endemic, (3) to flourish, to thrive
りゅうこうか (n) popular song, hit song
りゅうしゅつ (n,vs) (1) discharge, outward flow, efflux, effluence, (2) leak of (private) information or pictures
さすが (ateji) (adj-na,adv,n,adj-no) (1) (uk) as one would expect, (2) still, all the same, (3) even... (e.g. "even a genius...")
りゅうちょう (adj-na,n) fluent (language skill), flowing
りゅうつう (n,vs,adj-no) (1) circulation of money or goods, flow of water or air, distribution, (adj-f) (2) negotiable (e.g. shares)
りゅうどう (n,vs) flow
りゅうどうてき (adj-na,n) fluid, unsettled
りゅうにゅう (n,vs) afflux, influx
りゅうは (n) school (e.g. of ikebana)
りゅうひょう (n) drift ice, ice floe
りゅうよう (n,vs,adj-no) diversion, appropriation (e.g. of funds), misappropriation
るろう (n,vs) vagrancy, wandering, nomadism

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字