n.

1. 角；触角，触须
   The young goat was just beginning to grow horns.

   那头小山羊刚开始长角。

2. 角质[U]
   The handle of this knife is made of horn.

   这把刀的柄是用角制成的。

3. 角制物[C]
4. 管乐器；号，小号，号角[C]
5. 警笛，喇叭[C]
   A car passed him at top speed, sounding its horn.

   那辆车鸣着喇叭，全速从他身边驶过。

vt.

1. 用角抵触（或刺挑）
2. 装角于
3. 把（牛）角截去（或截短）

n.

1. an outgrowth of bone encased in hardened skin, often curved and pointed, found in pairs on the heads of cattle, sheep, goats, etc.
   ▸a hardened woolly outgrowth occurring singly or one behind another on the snout of a rhinoceros.
   ▸a horn-like projection on the head of another animal, e.g. a snail's tentacle.
   ▸ (horns) archaic a pair of horns as an emblem of a cuckold.
2. the substance of which horns are composed.
   ▸a receptacle made of horn, such as a drinking container.
3. a sharp promontory or mountain peak.
   ▸ (the Horn) Cape Horn (in South America).
   ▸an arm or branch of a river or bay.
   ▸the extremity of the moon or other crescent.
4. a brass wind instrument, conical in shape or wound into a spiral.
5. an instrument sounding a signal.
6. Brit. vulgar slang an erect penis.

v.

1. butt or gore with the horns.
2. (horn in) informal interfere.