Third-person singular simple present indicative form of throw the book at

Fighting; engaged in a confrontation.

Alternative form of down at heel

an atomic clock which uses the 1.4 GHz transition in a hydrogen atom to measure time to within 0.45 nanoseconds over a span of 12 hours

plural of hydrogen maser atomic clock

(historical) A duchy, encompassing the regions of Attica and Boeotia, which was established in Greece in 1205 after the conquest of the Byzantine Empire during the Fourth Crusade.

Being threatened with a sword; under coercion.

simple past tense of eat someone alive

(military) A member of the military who is being disciplined by being forbidden to leave the barracks or ship on which he/she is stationed.

plural of prisoner at large