Definition of "dugout"

The other explained that it had come with a fleet of canoes in charge of an English half-caste clerk Kurtz had with him; that Kurtz had apparently intended to return himself, the station being by that time bare of goods and stores, but after coming three hundred miles, had suddenly decided to go back, which he started to do alone in a small dug-out with four paddlers, leaving the half-caste to continue down the river with the ivory.

1899 March, Joseph Conrad, “The Heart of Darkness”, in Blackwood’s Edinburgh Magazine, volume CLXV, number MI, New York, N.Y.: The Leonard Scott Publishing Company, […], part II, pages 479–480

The key unit of life here is the dugout – what the soldiers call a ‘blindage’ – an underground burrow where half a dozen men share the narrow space between the bunks with weapons, ammunition, biscuits, tea bags, and a jumble of other essentials (there is also usually a cat, not to mention the mice).

2017 January 14, Roland Oliphant, “Special report: Loose cannons at the frontline of Ukraine's forgotten war”, in The Telegraph‎

Spurs, who were without boss Harry Redknapp after his heart surgery, failed to create a clear-cut chance. Redknapp is expected to be back in the dugout when Spurs play Fulham at Craven Cottage on Sunday but it was left to his assistant Kevin Bond to take a young team to Russia looking for the win that would put them through to the last 32.

2011 November 3, Chris Bevan, “Rubin Kazan 1 - 0 Tottenham”, in BBC Sport‎