v.t.及物動詞警戒Old people usually guard their wealth very closely
n. (c./u.)名詞 (可數/不可數)守衛A prison guard has to make sure the prisoners do not get away
n. (c./u.)名詞 (可數/不可數)後衛He plays as a guard on the basketball team.
n. (c./u.)名詞 (可數/不可數)防護裝置The machine has a safety guard to prevent accidents.
n. (c./u.)名詞 (可數/不可數)警衛隊The Royal Guard is responsible for protecting the royal family.