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lockfast

British  
/ ˈlɒkˌfɑːst /

adjective

  1. securely fastened with a lock

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His final conviction before he became a foster carer was theft from a lockfast place in 1978 - eight years before he began fostering.

From BBC • Jan. 28, 2026

And he opened a lockfast place, and took out a round-bellied bottle with a long neck; the glass of it was white like milk, with changing rainbow colours in the grain.

From The Works of Robert Louis Stevenson - Swanston Edition Vol. 17 (of 25) by Stevenson, Robert Louis

Besides what I have named, there was not another thing in that great, stone-vaulted, empty chamber but lockfast chests arranged along the wall and a corner cupboard with a padlock.

From Kidnapped by Stevenson, Robert Louis

Besides what I have named, there was not another thing in that great, stone-vaulted, empty chamber but lockfast chests arranged along the wall and a corner-cupboard with a padlock.

From The Works of Robert Louis Stevenson - Swanston Edition Vol. 10 (of 25) by Stevenson, Robert Louis

And he opened a lockfast place, and took out a round-bellied bottle with a long neck; the glass of it was white like milk, with changing rainbow colours in the grain. 

From Island Nights' Entertainments by Stevenson, Robert Louis