lair

1. (figuratively) A place inhabited by a criminal or criminals, a superhero or a supervillain; a refuge, retreat, haven or hideaway.Examples: "...Van Helsing stood up and said, "Now, my dear friends, we go forth to our terrible enterprise. Are we all armed, as we were on that night when first we visited our enemy's lair. Armed against ghostly as well as carnal attack?""; "[H]e did a little scout work, and discovered the lair of that old woman."Synonyms: den, hide-outfiguratively

2. (British dialectal) A bed or resting place.Examples: "Then would I in Plenty's lap, For the first time take a nap; Falling back in easy lair, Sweetly slumb'ring in my chair;"; "Wake ye, sleep ye, my hapless boy, In this homeless house of care? Lack ye the warmth of a mother's eye On the cauldrife, lonely lair?"Britishdialectal

3. (Scotland) A grave; a cemetery plot.Examples: "[…] but few knew the reason, and some thought it was because the deceased were strangers, and had no regular lair. I dressed the two bonny orphans in the best mourning at my own cost […]"; "This is one of the 'lairs' of the Harknesses of Holestain and Haprig."; "[…] I would purchase a lair in the Necropolis, and have wee Johnnie removed from his humble resting-place, and laid down [there]."Scotland

4. (seduction community) A group where pickup artists meet to discuss and practise seduction techniques.