► sita) to be on a chair, in a seat, or on the ground, with the top half of your body upright and your weight resting on your buttocks: He was restless, unable to sit still. Several children sat cross-legged on the floor in front of her.b) to get into a sitting position after you have been standing up: Jim walked over and sat beside her.c) to sit in a position in which your back is straight, or to get into this position after lying down or bending: An older woman was sitting upright at the desk. She suddenly sat bolt upright (=very straight), staring at him.d) to make someone sit somewhere or help him or her sit somewhere:
► take a seat to move in order to sit on a chair: Karen came in late and took a seat at the back of the room.
► sit up to move so that you are sitting, after you have been lying down: He heard a noise and sat up in bed.
► perch to sit on something high up, or on the edge of something: She came and perched next to me on one of the stools.
► lounge to sit or lie in a place in a very relaxed way without doing much: He found her out on the porch lounging in a chair.
► slouch to sit or stand with your shoulders bent forward in a way that makes you look tired or lazy: Sit up straight – don’t slouch.
► be slumped (over/forward) to be sitting with your head or shoulders leaning forward, especially because you are asleep or unconscious: His body was slumped over in the chair.