An arrowhead is the sharp piece at the front of an arrow — the part meant to cut or pierce. In older times it was often stone or metal, fitted onto a wooden shaft.

An arrowhead箭頭 is the sharp piece尖銳的部分 at the front of an arrow在箭最前面 — the part meant to cut or pierce用來切、用來刺穿的部分。In older times早期 it它 was often通常 stone or metal是石頭或金屬做的, fitted onto裝在 a wooden shaft木頭箭桿上。

Today you meet the word in history class, in museums, and when people talk about hunting. Sport archery often uses a different kind of tip, but the old name still sticks for that pointed shape.

Today今天 you meet the word你會遇到這個字 in history class在歷史課, in museums在博物館, and還有 when people talk about hunting人們談到打獵時。Sport archery運動射箭 often uses常用 a different kind of tip不同種類的箭頭, but the old name still sticks但這個舊名字仍然用來指 for that pointed shape那種尖的形狀。

People also stretch it, a little loosely, to anything that looks like that point: a road sign, a leaf, a mark on a map.

People人們 also也 stretch it把它用 a little loosely比較鬆散, to anything that looks like that point套用到任何看起來像那種尖形的東西上: a road sign路標, a leaf樹葉, a mark on a map地圖上的記號。

The core meaning is still the working end of the arrow, not the whole arrow, and not a person’s head. Head here is the front piece, the same idea as the head of a nail.

The core meaning核心意思 is still仍然是 the working end of the arrow箭發揮作用的那一端, not the whole arrow不是整支箭, and not a person's head也不是人的頭。Head here這裡的head is指的是 the front piece最前面的部分, the same idea as跟...是一樣的概念 the head of a nail釘子的頭(head of a nail)。