1. (noun)sitting, posing (photography) the act of assuming a certain position (as for a photograph or portrait) "he wanted his portrait painted but couldn't spare time for the sitting"
2. (noun)sitting the act of assuming or maintaining a seated position "he read the mystery at one sitting"
3. (noun)seance, sitting, session a meeting of spiritualists "the seance was held in the medium's parlor"
5. (adj)seated, sitting (of persons) having the torso erect and legsbent with the body supported on the buttocks "the seated Madonna"; "the audience remained seated"
6. (adj)sitting not moving and therefore easy to attack "a sitting target"
Definitions of 'sitting'
Webster 1913 Dictionary
1. (adj)sitting being in the state, or the position, of one who, or that which, sits
2. (noun)sitting the state or act of one who sits; the posture of one who occupies a seat
3. (noun)sitting a seat, or the space occupied by or allotted for a person, in a church, theater, etc.; as, the hall has 800 sittings
4. (noun)sitting the act or time of sitting, as to a portrait painter, photographer, etc
5. (noun)sitting the actual presence or meeting of any body of men in their seats, clothed with authority to transact business; a session; as, a sitting of the judges of the King's Bench, or of a commission
6. (noun)sitting the time during which one sits while doing something, as reading a book, playing a game, etc
Definition of sitting 
