the origin of a fire / an opening for ignition / the nozzle of a welder, etc / the opening through which the fire enters the barrel in a hinawajū / (volcanology) a crater

badmouthing done in the target's absence

lumber grade, the quality of a piece of wood / cut end (of a piece of wood) / wood handle, wooden grip

end grain, the grain of wood showing growth rings / kerf, the cut end of a log or branch, butt end

ticket window

cuff of a sleeve

ticket gate

a ruling pen

entrance, (especially) entrance area of a school building

front door