Answer:
則 SOKU - rule, law
青 SEI, SHOU, ao(i) - blue
先 SEN, saki - previous. before
魚 GYO, sakana, uo - fish
票 HYOU - paper slip, vote, ballot
Add the "water" radical (氵sanzui) to see what happens!
測 SOKU, haka(ru) - measure
清 SEI, kiyo(i), kiyo(meru) - clean, pure, purify, cleanse
洗 SEN, ara(u) - wash
漁 GYO, RYOU - fishing
漂 HYOU, tadayo(u) - drift about, float