close-tiled

English

Adjective

close-tiled (not comparable)

1. (Freemasonry) Of a lodge, having been sealed against intrusions from unauthorised people.
2. (figurative) In secret; in private.
   • 1912, Arthur Conan Doyle, The Lost World […], London; New York, N.Y.: Hodder and Stoughton, →OCLC:

     "I say, young fellah, I hope you don't mind - what? You see, between you an' me close-tiled, I look on this South American business as a mighty serious thing, and if I have a pal with me I want a man I can bank on."