ratio, rate, proportion, %, factor, lead, spearhead, command
率 has two main conceptual centers. One is about a mathematical relationship: a ratio, rate, proportion, or percentage. The other is about taking charge: leading, spearheading, or commanding a group.
率 originally depicted a rope or net used for pulling or leading, which gave rise to the 'lead' meaning. The 'ratio' sense is a later semantic extension, possibly from the idea of a standard or measure.
The top part looks like a lid or cover, and the lower part resembles a cross with extra lines. Imagine a leader holding a standard (the cross-like shape) to set the rate for the group.
For ソツ, picture a leader giving a short, sharp command: 'Sots!' — like a quick, decisive order. The sound 'sots' cues ソツ while the leader takes charge.
rate; ratio; proportion; percentage
probability; likelihood; chances
efficiency
ratio; proportion; percentage
to lead; to spearhead (a group); to command (troops)
magnification; leverage; amplification; scaling factor; scale factor
winning percentage
frank; candid; straightforward; openhearted; direct; outspoken
tariff
batting average
rash; thoughtless; careless; hasty; imprudent
taking the initiative
efficiency
the same ratio or percentage
interest rate
annual rate (of interest)
high rate
fixed rate
growth rate
efficient
death rate; mortality rate
operating rate; utilization rate; occupancy rate; availability factor
rate of economic growth
ratings (e.g. of a television program); audience rating; viewing rate