(literary) keen

need, necessity

a forged blade, such as a sword / the wavy pattern formed in the metal on the surface of a forged blade / a sword or similar edged weapon / something sharp like a sword / someone or something powerful

any sharp and thin cutting implement: a blade, edge

a blade, edge

blade, sharp, sword / cut, slash

to be careful, watch out, exercise caution

caution; warning; attention

stairs used in emergencies

state of emergency (unusually difficult or dangerous situation)