den¹ /den/

1. The hollow lair of a wild animal
2. A pit or cave
3. A haunt of vice or misery
4. A private domestic room or office for work or pleasure (informal)
5. A Cub Scout group (US)
6. A narrow valley, a dean (Scot)

To retire to a den

den mother noun (US)

1. An adult female leader of a Cub Scout group
2. Any adult female protective figure in general

• servant-lasses
• servantless
• servant-maid
• servant-maids
• servant-man
• servant-men
• servantries
• servantry
• servants
• servants' hall
• servantship
• servantships
• serve
• serve an apprenticeship
• serve as
• serve a writ on
• served
• serve its turn
• serve one's time
• serve one's turn
• serve out
• server
• server farm
• server farms
• serveries