n.

1. 武器
   They captured large quantities of arms and ammunition.

   他们缴获了大量武器弹药。

2. 战争；战斗，斗争；兵役
   All of the colonies were up in arms against him.

   所有的殖民地均奋起与他作斗争。

3. 纹章；徽章
   The arms of a city or noble family are its coat of arms.

   城市或显赫家族的标志是盾形纹徽。

pl. n.

1. weapons; armaments.
2. distinctive emblems originally borne on shields in battle and now forming heraldic insignia.