Meanings

Greek fire

fire sensor

fire alarm system

smoke detector (residential)

not getting along well with each other

flame detector

Tuesday, Wednesday and Thursday

seven-day workweek

Monday, Tuesday and Wednesday

Tuesday, Wednesday, Thursday and Friday

Monday, Tuesday, Wednesday and Thursday

weekday

automatic firearm

ignition source

bonfire

crater lake

sea of fire

colloxylin

you can never be too careful

you can never be too careful