A squalid or wretched place; a haunt.
Synonym of fort (“structure improvised from furniture, etc. for playing games.”)
A comfortable room not used for formal entertaining.
A group of Cub Scouts of the same age who work on projects together.
A small cavern or hollow place in the side of a hill, or among rocks; especially, a cave used by a wild animal for shelter or concealment.
To ensconce or hide oneself in (or as in) a den.
A ghost or apparition.
A placeholder for a pair of players when there are an odd number of pairs playing.
Something apparently seen, heard, or sensed, but having no physical reality; an image that appears only in the mind; an illusion or delusion.
A test object. A test phantom is an object that reproduces the characteristics of human tissue.
Illusive.
Fictitious or nonexistent.