Dictionary.net

• The duty of keeping watch and ward (see the Note under Watch, n., 1) with a horn to be blown upon any occasion of surprise.

2010 - New Age Dictionary Database
By Oddity Software

• The duty of keeping watch and ward (see the Note under Watch, n., 1) with a horn to be blown upon any occasion of surprise.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.