ducket

Uncertain; perhaps a variant of dovecote. First attested in the late 1900s.

ducket (plural duckets)

1. (historical, British) A windowed, box-like structure mounted to the top or side of the brake van of a train, from which the guard has a clearer view along the railway track.
   • 1952 January, “British Railways Standard Wagons”, in Railway Magazine, page 59:

     Access to the veranda is by means of hinged doors, and a deep ducket or projection is provided on each side to form a lookout.

• “ducket”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

ducket (plural duckets)

1. Obsolete form of ducat.

• tucked

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ducket

1. second-person plural subjunctive I of ducken