This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A building that accommodates a military guard.

n. A jail for the detention of military personnel guilty of minor offenses or awaiting court-martial.

n. The building housing military police

n. A small security station, often at the entrance to a facility or a city.

n. A military prison

n. A building which is occupied by the guard, and in which soldiers are confined for misconduct; hence, a lock-up.

n. A building in which a military guard is stationed for the care of prisoners confined in it and for the relief of sentries.

n. A place for the temporary detention of civil prisoners under guard.

n. a military facility that serves as the headquarters for military police and in which military prisoners can be detained

"This very large home had a guardhouse, and atop the guardhouse was a tee."

HQ    military headquarters    headquarters   

shelter    prison   

chitter    Chicagoland    way station    ifrit    superintendant    mess-room    route-march    matchwood    acid-accredited    earthern