[f. TRENCH sb. + -FUL.] As many or as much as a trench holds or will hold.

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1900.  [L. Creswicke], in Blackw. Mag., July, 125/2. Seldom have I set eyes on a more magnificent specimen of male humanity than the commandant of the trenchful of Boers.

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1901.  ‘Linesman,’ Words Eyewitness, vii. (1902), 151. Behind them again the advanced guard of a trenchful of curious private soldiers.

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