ly·ce·um 
(lī-sēəm)
(lī-sēəm)n.
1. A hall in which public lectures, concerts, and similar programs are presented.
2. An organization sponsoring public programs and entertainment.
3. A lycée.
[Latin Lycēum, from Greek Lukeion, the name of a grove with athletic training grounds near Athens in which Aristotle taught, from Lukeios, epithet of Apollo (to whom the grove was sacred), of unknown meaning.]
- observingly
- obsess
- obsession
- obsessional
- obsessionally
- obsessive
- obsessive-compulsive
- obsessive-compulsive disorder
- obsessive-compulsive personality disorder
- obsessively
- obsessiveness
- obsessor
- obsidian
- obsolesce
- obsolescence
- obsolescent
- obsolescently
- obsolete
- obsoletely
- obsoleteness
- obsoletism
- obstacle
- obstacle course
- obstetric
- obstetrical