S: (v) limit, circumscribe, confine to (restrict or confine within limits) "I limit you to two visits to the pub a day"; "please confine your questions to the topic"; "our actions are circumscribed by our biology, personality, and by the social and cultural context into which we are born"
S: (v) reduce, boil down, concentrate (cook until very little liquid is left) "The cook reduced the sauce by boiling it for a long time"
S: (v) shrink, reduce (reduce in size; reduce physically) "Hot water will shrink the sweater"; "Can you shrink this image?"
W: (v) expand [Opposed to: contract] (add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing) "She elaborated on the main ideas in her dissertation"