This meaning refers to the physical tip of a spear, representing the sharp end used for thrusting in combat. It can be used literally in discussions about weaponry or metaphorically to suggest precision and the forefront of any pointed effort.

This meaning conveys the idea of directing one's efforts or criticisms toward a specific target, highlighting where attention or force is concentrated. It often relates to discussions surrounding conflict or challenge.

This usage signifies the strength or persuasive power of an argument, suggesting that the sharper or more defined the argument, the more effective it is in a discussion or debate.