Chinese words with 率 character meaning (HSK)

HUI4, LV4
exchange rate

TAN3, SHUAI4
frank (discussion), blunt, open

XIAO4, LV4
efficiency

CAO3, SHUAI4
careless, negligent, sloppy, not serious

PIN2, LV4
frequency

SHUAI4, LING3
lead, command, head