| Level 2 vocabulary |
| 一流 | (n) first class/ top grade/ school (of art)/ foremost/ top-notch/ unique/ (P) |  |
| 交流 | (n) alternating current/ intercourse/ (cultural) exchange/ intermingling/ (P) |  |
| 合流 | (n,vs) confluence/ union/ linking up/ merge |  |
| 流石 | (adj-na,adv,n) (uk) clever/ adept/ good/ expectations/ as one would expect/ (P) |  |
| 直流 | (n) direct current |  |
| 電流 | (n) electric current/ (P) |  |
| 流す | (v5s) to drain/ to float/ to shed (blood, tears)/ to cruise (e.g. taxi)/ (P) |  |
| 流れ | (n) stream/ current/ (P) |  |
| 流れる | (v1) to stream/ to flow (liquid, time, etc.)/ to run (ink)/ to be washed away/ (P) |  |
| 流行る | (v5r) to flourish/ to thrive/ to be popular/ to come into fashion/ (P) |  |
| 〜流 | (n,n-suf) style of/ method of/ manner of/ school (of thought)/ (P) |  |
| 流域 | (n) (river) basin/ (P) |  |
| 流行 | (n,vs) fashionable/ fad/ in vogue/ prevailing/ (P) |  |
| Level 1 vocabulary |
| 海流 | (n) ocean current/ (P) |  |
| 気流 | (n) atmospheric current |  |
| 流し | (n) sink/ (P) |  |
| 流通 | (n) circulation of money or goods/ flow of water or air/ distribution/ (P) |  |