enthusiastic approval; "the book met with modest acclaim"; "he acknowledged the plaudits of the crowd"; "they gave him more eclat than he really deserved"
praise vociferously; "The critics hailed the young pianist as a new Rubinstein"
underestimate the real value or ability of; "Don't sell your students short--they are just shy and don't show off their knowledge"
sell securities or commodities or foreign currency that is not actually owned by the seller, who hopes to cover (buy back) the sold items at a lower price and thus to earn a profit