Related topics: Illness & disability
lisp /lɪsp/ noun [singular] MISPEAK A LANGUAGEa fault in the way someone speaks which makes them pronounce ‘s’ sounds as ‘th’ 咬舌〔语音缺陷,把s发成th音〕 She speaks with a slight lisp. 她说话带点咬舌音。
—lisp verb [intransitiveI, transitiveT]