simple spear; straight spear
Refers to a basic, unadorned spear without additional features or decorations. Often used in historical or martial contexts.
戦国時代の足軽は素槍を主な武器とした。
Foot soldiers in the Warring States period used simple spears as their main weapon.
unsheathed spear
Describes a spear that is drawn and ready for use, as opposed to being sheathed or covered. This sense is less common and typically appears in descriptions of combat readiness.
武士は素槍を手に、敵陣へ突き進んだ。
The warrior, with unsheathed spear in hand, charged into the enemy lines.
Compound of 素 (su, 'plain, unadorned') and 槍 (yari, 'spear'). The exact historical derivation is uncertain, but the term straightforwardly describes a basic or bare spear.