noun
spearhead; tip of a spear
Refers to the pointed metal head of a spear. Can also be used figuratively for the leading part of an attack or movement.
槍の穂先が光っている。
The spearhead is shining.
彼らは槍の穂先を研いだ。
They sharpened the tips of their spears.
General word for 'spear'; 槍の穂先 is the head or tip of the spear.
Compound of 槍 (spear) + の (possessive particle) + 穂先 (tip of an ear of grain or point of a tool), literally 'the tip of a spear'.