bolt
cash
charge
coin
currency
danger
disaster
electric
electrical
electricity
energy
fast
finance
financial
flash
flat
glyph
gray
grey
hazard
investment
light
lightning
monetary
money
pictogram
pictograph
power
quick
raster
raster icon
risk
savings
shock
silver
spark
strike
symbol
thunder
thunderbolt
token
treasure
voltage
warning
wealth